Leovac, Vukadin M.

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Authority KeyName Variants
33ac856d-1b6c-4080-bf47-5d8b36a1a159
  • Leovac, Vukadin M. (27)
Projects
Design, synthesis, characterization and assessment of practical applications of coordination and organometallic compounds Sinteze, fizičke, strukturne i biološke karakteristike novih kompleksnih jedenjenja
Ministry of Science and Technological Development of the Republic of Serbia [142028], Provincial Secretariat for Science and Technological Development of Vojvodina Ministry of Science and Technological Development of the Republic of Serbia [142028]
Provincial Secretariat for Science and Technological Development of Vojvodina Rational design and synthesis of biologically active and coordination compounds and functional materials, relevant for (bio)nanotechnology
Synthesis, processing and characterization of nanostructured materials for application in the field of energy, mechanical engineering, environmental protection and biomedicine Multiscale structuring of polymer nanocomposites and functional materials based on different precursors
Ministry for Science and Technological Development of the Republic of Serbia [142010, 142028] Ministry of Science and Environmental Protection of the Republic of Serbia [142028], Provincial Secretariat for Science and Technological Development of Vojvodina
Provincial Secretariat for Science and Technological Development of AP Vojvodina (Republic of Serbia) Secretariat for Science and Technological Development (Autonomous Province of Vojvodina, Republic of Serbia)
Secretariat for Science and Technological Development, Autonomous Province of Vojvodina, Republic of Serbia

Author's Bibliography

Pyrazole-type complexes with Ni(II) and Cu(II) Solvent exchange reactions in coordination compounds

Jacimovic, Zeljko K.; Giester, Gerald; Kosovic, Milica; Bogdanović, Goran A.; Novaković, Slađana B.; Leovac, Vukadin M.; Latinović, Nedeljko; Hollo, Berta Barta; Szecsenyi, Katalin Meszaros

(2017)

TY  - JOUR
AU  - Jacimovic, Zeljko K.
AU  - Giester, Gerald
AU  - Kosovic, Milica
AU  - Bogdanović, Goran A.
AU  - Novaković, Slađana B.
AU  - Leovac, Vukadin M.
AU  - Latinović, Nedeljko
AU  - Hollo, Berta Barta
AU  - Szecsenyi, Katalin Meszaros
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1428
AB  - New nickel(II) and copper(II) coordination compounds were synthesized by the reaction of N-(benzyloxycarbonyl)-1H-pyrazole-1-carboxamidine ligand (HL) with Ni(II) and Cu(II) acetate in methanolic solution. The crystal and molecular structures of the complexes as well as those of the ligand were determined by single-crystal X-ray structure analysis. The octahedral surrounding around the metal centers in the isostructural complexes [ML2(MeOH)(2)], M = Ni(II), Cu(II), MeOH = methanol, is established by the bidentate coordination of two ligand molecules through the pyrazole nitrogen and the deprotonated nitrogen atom of the carboxamidine group along with the oxygen atoms from two MeOH molecules. Despite that the molecular structure of the complexes was determined by X-ray structure analysis, in the FT-IR spectra of the compounds the characteristic bands for MeOH were missing. By coupled TG-MS measurements, it was found that compounds during the transport and storage exchanged MeOH by water molecules. The amount of the water was calculated on the basis of thermogravimetric data. The antifungal activity of the compounds was tested against fungi Ph. viticola and B. dothidea and compared to that of a commercial fungicide. Depending on the fungi and on the structure, the compounds showed different, but somewhat lower activity than the commercial fungicide.
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Pyrazole-type complexes with Ni(II) and Cu(II) Solvent exchange reactions in coordination compounds
VL  - 127
IS  - 2
SP  - 1501
EP  - 1509
DO  - 10.1007/s10973-016-5549-9
ER  - 
@article{
author = "Jacimovic, Zeljko K. and Giester, Gerald and Kosovic, Milica and Bogdanović, Goran A. and Novaković, Slađana B. and Leovac, Vukadin M. and Latinović, Nedeljko and Hollo, Berta Barta and Szecsenyi, Katalin Meszaros",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1428",
abstract = "New nickel(II) and copper(II) coordination compounds were synthesized by the reaction of N-(benzyloxycarbonyl)-1H-pyrazole-1-carboxamidine ligand (HL) with Ni(II) and Cu(II) acetate in methanolic solution. The crystal and molecular structures of the complexes as well as those of the ligand were determined by single-crystal X-ray structure analysis. The octahedral surrounding around the metal centers in the isostructural complexes [ML2(MeOH)(2)], M = Ni(II), Cu(II), MeOH = methanol, is established by the bidentate coordination of two ligand molecules through the pyrazole nitrogen and the deprotonated nitrogen atom of the carboxamidine group along with the oxygen atoms from two MeOH molecules. Despite that the molecular structure of the complexes was determined by X-ray structure analysis, in the FT-IR spectra of the compounds the characteristic bands for MeOH were missing. By coupled TG-MS measurements, it was found that compounds during the transport and storage exchanged MeOH by water molecules. The amount of the water was calculated on the basis of thermogravimetric data. The antifungal activity of the compounds was tested against fungi Ph. viticola and B. dothidea and compared to that of a commercial fungicide. Depending on the fungi and on the structure, the compounds showed different, but somewhat lower activity than the commercial fungicide.",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Pyrazole-type complexes with Ni(II) and Cu(II) Solvent exchange reactions in coordination compounds",
volume = "127",
number = "2",
pages = "1501-1509",
doi = "10.1007/s10973-016-5549-9"
}
Jacimovic, Z. K., Giester, G., Kosovic, M., Bogdanović, G. A., Novaković, S. B., Leovac, V. M., Latinović, N., Hollo, B. B.,& Szecsenyi, K. M. (2017). Pyrazole-type complexes with Ni(II) and Cu(II) Solvent exchange reactions in coordination compounds.
Journal of Thermal Analysis and Calorimetry, 127(2), 1501-1509.
https://doi.org/10.1007/s10973-016-5549-9
Jacimovic ZK, Giester G, Kosovic M, Bogdanović GA, Novaković SB, Leovac VM, Latinović N, Hollo BB, Szecsenyi KM. Pyrazole-type complexes with Ni(II) and Cu(II) Solvent exchange reactions in coordination compounds. Journal of Thermal Analysis and Calorimetry. 2017;127(2):1501-1509
Jacimovic Zeljko K., Giester Gerald, Kosovic Milica, Bogdanović Goran A., Novaković Slađana B., Leovac Vukadin M., Latinović Nedeljko, Hollo Berta Barta, Szecsenyi Katalin Meszaros, "Pyrazole-type complexes with Ni(II) and Cu(II) Solvent exchange reactions in coordination compounds" Journal of Thermal Analysis and Calorimetry, 127, no. 2 (2017):1501-1509,
https://doi.org/10.1007/s10973-016-5549-9 .
11
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Synthesis, characterization, cytotoxicity and antiangiogenic activity of copper(II) complexes with 1-adamantoyl hydrazone bearing pyridine rings

Rodic, Marko V.; Leovac, Vukadin M.; Joyanovic, Ljiljana S.; Spasojević, Vojislav; Joksović, Milan D.; Stanojković, Tatjana P.; Matić, Ivana Z.; Vojinović-Ješić, Ljiljana S.; Marković, Violeta

(2016)

TY  - JOUR
AU  - Rodic, Marko V.
AU  - Leovac, Vukadin M.
AU  - Joyanovic, Ljiljana S.
AU  - Spasojević, Vojislav
AU  - Joksović, Milan D.
AU  - Stanojković, Tatjana P.
AU  - Matić, Ivana Z.
AU  - Vojinović-Ješić, Ljiljana S.
AU  - Marković, Violeta
PY  - 2016
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1053
AB  - Three novel copper complexes with tridentate N2O ligand di(2-pyridil) ketone 1-adamantoyl hydrazone (Addpy) of the formula [(Cu2Cu2I)-Cu-II(Addpy)(2)Br-2(mu-Br-4)] (1), catena-poly[CuCl(mu-Addpy)(mu-Cl)CuCl2](n) (2) and [Cu(Addpy)(NCS)(2)] (3) were synthesized. Complexes are characterized by X-ray crystallography, spectral (UV-Vis, FTIR), electrochemical (CV) analyses, and magnetochemical measurements. Investigation of anticancer potential of Cu(II) complexes, mode of cell death, apoptosis, and inhibition of angiogenesis were performed. All tested malignant cell lines (HeLa, LS174, A549, K562, and MDA-MB-231) showed high sensitivity to the examined Cu(II) complexes. It has been shown that the complexes induce apoptosis in the caspase 3-dependent manner, whereas the anti-angiogenic effects of 1, 2, and 3 have been confirmed in EA.hy926 cells using a tube formation assay. (C) 2016 Elsevier Masson SAS. All rights reserved.
T2  - European Journal of Medicinal Chemistry
T1  - Synthesis, characterization, cytotoxicity and antiangiogenic activity of copper(II) complexes with 1-adamantoyl hydrazone bearing pyridine rings
VL  - 115
SP  - 75
EP  - 81
DO  - 10.1016/j.ejmech.2016.03.003
ER  - 
@article{
author = "Rodic, Marko V. and Leovac, Vukadin M. and Joyanovic, Ljiljana S. and Spasojević, Vojislav and Joksović, Milan D. and Stanojković, Tatjana P. and Matić, Ivana Z. and Vojinović-Ješić, Ljiljana S. and Marković, Violeta",
year = "2016",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1053",
abstract = "Three novel copper complexes with tridentate N2O ligand di(2-pyridil) ketone 1-adamantoyl hydrazone (Addpy) of the formula [(Cu2Cu2I)-Cu-II(Addpy)(2)Br-2(mu-Br-4)] (1), catena-poly[CuCl(mu-Addpy)(mu-Cl)CuCl2](n) (2) and [Cu(Addpy)(NCS)(2)] (3) were synthesized. Complexes are characterized by X-ray crystallography, spectral (UV-Vis, FTIR), electrochemical (CV) analyses, and magnetochemical measurements. Investigation of anticancer potential of Cu(II) complexes, mode of cell death, apoptosis, and inhibition of angiogenesis were performed. All tested malignant cell lines (HeLa, LS174, A549, K562, and MDA-MB-231) showed high sensitivity to the examined Cu(II) complexes. It has been shown that the complexes induce apoptosis in the caspase 3-dependent manner, whereas the anti-angiogenic effects of 1, 2, and 3 have been confirmed in EA.hy926 cells using a tube formation assay. (C) 2016 Elsevier Masson SAS. All rights reserved.",
journal = "European Journal of Medicinal Chemistry",
title = "Synthesis, characterization, cytotoxicity and antiangiogenic activity of copper(II) complexes with 1-adamantoyl hydrazone bearing pyridine rings",
volume = "115",
pages = "75-81",
doi = "10.1016/j.ejmech.2016.03.003"
}
Rodic, M. V., Leovac, V. M., Joyanovic, L. S., Spasojević, V., Joksović, M. D., Stanojković, T. P., Matić, I. Z., Vojinović-Ješić, L. S.,& Marković, V. (2016). Synthesis, characterization, cytotoxicity and antiangiogenic activity of copper(II) complexes with 1-adamantoyl hydrazone bearing pyridine rings.
European Journal of Medicinal Chemistry, 115, 75-81.
https://doi.org/10.1016/j.ejmech.2016.03.003
Rodic MV, Leovac VM, Joyanovic LS, Spasojević V, Joksović MD, Stanojković TP, Matić IZ, Vojinović-Ješić LS, Marković V. Synthesis, characterization, cytotoxicity and antiangiogenic activity of copper(II) complexes with 1-adamantoyl hydrazone bearing pyridine rings. European Journal of Medicinal Chemistry. 2016;115:75-81
Rodic Marko V., Leovac Vukadin M., Joyanovic Ljiljana S., Spasojević Vojislav, Joksović Milan D., Stanojković Tatjana P., Matić Ivana Z., Vojinović-Ješić Ljiljana S., Marković Violeta, "Synthesis, characterization, cytotoxicity and antiangiogenic activity of copper(II) complexes with 1-adamantoyl hydrazone bearing pyridine rings" European Journal of Medicinal Chemistry, 115 (2016):75-81,
https://doi.org/10.1016/j.ejmech.2016.03.003 .
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Transition metal complexes with thiosemicarbazide-based ligands. Part 61. Comparative analysis of structural properties of the pyridoxal thiosemicarbazone ligands. Crystal structure of PLTSC center dot HCl center dot 2H(2)O and its complex [Fe(PLTSC)Cl-2(H2O)]Cl

Ivkovic, Sonja A.; Vojinović-Ješić, Ljiljana S.; Leovac, Vukadin M.; Rodic, Marko V.; Novaković, Slađana B.; Bogdanović, Goran A.

(2015)

TY  - JOUR
AU  - Ivkovic, Sonja A.
AU  - Vojinović-Ješić, Ljiljana S.
AU  - Leovac, Vukadin M.
AU  - Rodic, Marko V.
AU  - Novaković, Slađana B.
AU  - Bogdanović, Goran A.
PY  - 2015
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/360
AB  - A novel pyridoxal thiosemicarbazone (PLTSC) compound, exhibiting ligating properties, of the formula PLTSC center dot HCl center dot 2H(2)O (1) was synthesized and characterized by X-ray analysis. The PLTSC ligand 1 displays significantly different conformation in comparison to the five previously reported compounds of this type. The structural properties of six PLTSC ligands in different conformations were compared in order to establish the structural differences and understand the factors that facilitate particular conformations. The analysis indicated great structural flexibility of the PLTSC ligands. The PLTSC ligand 1 is essentially a planar molecule with the r.m.s deviation of all non-H atoms equal to 0.06 angstrom. Consequently, the molecules of 1 form a layered three-dimensional structure which is stabilized by a variety of hydrogen bonds: O-H center dot center dot center dot O, O-H center dot center dot center dot N, O-H center dot center dot center dot Cl, O-H center dot center dot center dot S, N-H center dot center dot center dot O, N-H center dot center dot center dot N, N-H center dot center dot center dot Cl, N-H center dot center dot center dot S. In addition, the crystal structure of the Fe(III) complex with the ligand 1 of the formula [Fe(PLTSC)Cl-2(H2O)]Cl was resolved by single-crystal X-ray analysis and structural properties of this octahedral complex were discussed and compared to those of uncoordinated PLTSC ligand.
T2  - Structural Chemistry
T1  - Transition metal complexes with thiosemicarbazide-based ligands. Part 61. Comparative analysis of structural properties of the pyridoxal thiosemicarbazone ligands. Crystal structure of PLTSC center dot HCl center dot 2H(2)O and its complex [Fe(PLTSC)Cl-2(H2O)]Cl
VL  - 26
IS  - 1
SP  - 269
EP  - 277
DO  - 10.1007/s11224-014-0491-6
ER  - 
@article{
author = "Ivkovic, Sonja A. and Vojinović-Ješić, Ljiljana S. and Leovac, Vukadin M. and Rodic, Marko V. and Novaković, Slađana B. and Bogdanović, Goran A.",
year = "2015",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/360",
abstract = "A novel pyridoxal thiosemicarbazone (PLTSC) compound, exhibiting ligating properties, of the formula PLTSC center dot HCl center dot 2H(2)O (1) was synthesized and characterized by X-ray analysis. The PLTSC ligand 1 displays significantly different conformation in comparison to the five previously reported compounds of this type. The structural properties of six PLTSC ligands in different conformations were compared in order to establish the structural differences and understand the factors that facilitate particular conformations. The analysis indicated great structural flexibility of the PLTSC ligands. The PLTSC ligand 1 is essentially a planar molecule with the r.m.s deviation of all non-H atoms equal to 0.06 angstrom. Consequently, the molecules of 1 form a layered three-dimensional structure which is stabilized by a variety of hydrogen bonds: O-H center dot center dot center dot O, O-H center dot center dot center dot N, O-H center dot center dot center dot Cl, O-H center dot center dot center dot S, N-H center dot center dot center dot O, N-H center dot center dot center dot N, N-H center dot center dot center dot Cl, N-H center dot center dot center dot S. In addition, the crystal structure of the Fe(III) complex with the ligand 1 of the formula [Fe(PLTSC)Cl-2(H2O)]Cl was resolved by single-crystal X-ray analysis and structural properties of this octahedral complex were discussed and compared to those of uncoordinated PLTSC ligand.",
journal = "Structural Chemistry",
title = "Transition metal complexes with thiosemicarbazide-based ligands. Part 61. Comparative analysis of structural properties of the pyridoxal thiosemicarbazone ligands. Crystal structure of PLTSC center dot HCl center dot 2H(2)O and its complex [Fe(PLTSC)Cl-2(H2O)]Cl",
volume = "26",
number = "1",
pages = "269-277",
doi = "10.1007/s11224-014-0491-6"
}
Ivkovic, S. A., Vojinović-Ješić, L. S., Leovac, V. M., Rodic, M. V., Novaković, S. B.,& Bogdanović, G. A. (2015). Transition metal complexes with thiosemicarbazide-based ligands. Part 61. Comparative analysis of structural properties of the pyridoxal thiosemicarbazone ligands. Crystal structure of PLTSC center dot HCl center dot 2H(2)O and its complex [Fe(PLTSC)Cl-2(H2O)]Cl.
Structural Chemistry, 26(1), 269-277.
https://doi.org/10.1007/s11224-014-0491-6
Ivkovic SA, Vojinović-Ješić LS, Leovac VM, Rodic MV, Novaković SB, Bogdanović GA. Transition metal complexes with thiosemicarbazide-based ligands. Part 61. Comparative analysis of structural properties of the pyridoxal thiosemicarbazone ligands. Crystal structure of PLTSC center dot HCl center dot 2H(2)O and its complex [Fe(PLTSC)Cl-2(H2O)]Cl. Structural Chemistry. 2015;26(1):269-277
Ivkovic Sonja A., Vojinović-Ješić Ljiljana S., Leovac Vukadin M., Rodic Marko V., Novaković Slađana B., Bogdanović Goran A., "Transition metal complexes with thiosemicarbazide-based ligands. Part 61. Comparative analysis of structural properties of the pyridoxal thiosemicarbazone ligands. Crystal structure of PLTSC center dot HCl center dot 2H(2)O and its complex [Fe(PLTSC)Cl-2(H2O)]Cl" Structural Chemistry, 26, no. 1 (2015):269-277,
https://doi.org/10.1007/s11224-014-0491-6 .
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Cation- and/or anion-directed reaction routes. Could the desolvation pattern of isostructural coordination compounds be related to their molecular structure?

Hollo, Berta; Rodic, Marko V.; Bera, Oskar; Jovicic, Mirjana; Leovac, Vukadin M.; Tomić, Zoran D.; Szecsenyi, Katalin Meszaros

(2013)

TY  - JOUR
AU  - Hollo, Berta
AU  - Rodic, Marko V.
AU  - Bera, Oskar
AU  - Jovicic, Mirjana
AU  - Leovac, Vukadin M.
AU  - Tomić, Zoran D.
AU  - Szecsenyi, Katalin Meszaros
PY  - 2013
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5791
AB  - The crystal and molecular structure of [Cu(ampf)(ClO4)(MeOH)(2)]ClO4, (1), ampf = N, N-bis(4-acetyl-5-methylpyrazol-3-yl)formamidine, determined by X-ray crystallography is described and compared with the structurally related copper(II) complexes, formed under similar experimental conditions, using Cu-II salts with different anions. The complex formation is discussed in view of the structures of cobalt(II) and nickel(II) complexes with the same organic ligand and different anions, also formed under similar reaction conditions. Solvent molecules coordinated to the central atom play an important role in biologic systems. To get a better insight into the desolvation mechanism, in this study the desolvation pattern of 1 is presented. As in literature little attention is paid to the desolvation mechanism of solvate complexes, the desolvation mechanism of three, potentially biologically active isostructural pairs of octahedral Ni-II and Co-II compounds with ampf and dmpc (3,5-dimethyl-1H-pyrazole-1-carboxamidine) ligands are evaluated and compared with the desolvation of 1. The results of the thermal data are discussed on the basis of structural features of the compounds. The minor differences in structures of the related compounds cannot be straightforwardly connected with the different solvent evaporation mechanism. To explain the differences found in desolvation pattern in isostructural Co-II and Ni-II complexes the Jahn-Teller effect is proposed.
T2  - Structural Chemistry
T1  - Cation- and/or anion-directed reaction routes. Could the desolvation pattern of isostructural coordination compounds be related to their molecular structure?
VL  - 24
IS  - 6
SP  - 2193
EP  - 2201
DO  - 10.1007/s11224-013-0270-9
ER  - 
@article{
author = "Hollo, Berta and Rodic, Marko V. and Bera, Oskar and Jovicic, Mirjana and Leovac, Vukadin M. and Tomić, Zoran D. and Szecsenyi, Katalin Meszaros",
year = "2013",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/5791",
abstract = "The crystal and molecular structure of [Cu(ampf)(ClO4)(MeOH)(2)]ClO4, (1), ampf = N, N-bis(4-acetyl-5-methylpyrazol-3-yl)formamidine, determined by X-ray crystallography is described and compared with the structurally related copper(II) complexes, formed under similar experimental conditions, using Cu-II salts with different anions. The complex formation is discussed in view of the structures of cobalt(II) and nickel(II) complexes with the same organic ligand and different anions, also formed under similar reaction conditions. Solvent molecules coordinated to the central atom play an important role in biologic systems. To get a better insight into the desolvation mechanism, in this study the desolvation pattern of 1 is presented. As in literature little attention is paid to the desolvation mechanism of solvate complexes, the desolvation mechanism of three, potentially biologically active isostructural pairs of octahedral Ni-II and Co-II compounds with ampf and dmpc (3,5-dimethyl-1H-pyrazole-1-carboxamidine) ligands are evaluated and compared with the desolvation of 1. The results of the thermal data are discussed on the basis of structural features of the compounds. The minor differences in structures of the related compounds cannot be straightforwardly connected with the different solvent evaporation mechanism. To explain the differences found in desolvation pattern in isostructural Co-II and Ni-II complexes the Jahn-Teller effect is proposed.",
journal = "Structural Chemistry",
title = "Cation- and/or anion-directed reaction routes. Could the desolvation pattern of isostructural coordination compounds be related to their molecular structure?",
volume = "24",
number = "6",
pages = "2193-2201",
doi = "10.1007/s11224-013-0270-9"
}
Hollo, B., Rodic, M. V., Bera, O., Jovicic, M., Leovac, V. M., Tomić, Z. D.,& Szecsenyi, K. M. (2013). Cation- and/or anion-directed reaction routes. Could the desolvation pattern of isostructural coordination compounds be related to their molecular structure?.
Structural Chemistry, 24(6), 2193-2201.
https://doi.org/10.1007/s11224-013-0270-9
Hollo B, Rodic MV, Bera O, Jovicic M, Leovac VM, Tomić ZD, Szecsenyi KM. Cation- and/or anion-directed reaction routes. Could the desolvation pattern of isostructural coordination compounds be related to their molecular structure?. Structural Chemistry. 2013;24(6):2193-2201
Hollo Berta, Rodic Marko V., Bera Oskar, Jovicic Mirjana, Leovac Vukadin M., Tomić Zoran D., Szecsenyi Katalin Meszaros, "Cation- and/or anion-directed reaction routes. Could the desolvation pattern of isostructural coordination compounds be related to their molecular structure?" Structural Chemistry, 24, no. 6 (2013):2193-2201,
https://doi.org/10.1007/s11224-013-0270-9 .
4
4
4

Stability of zirconia sol in the presence of various inorganic electrolytes

Marković, Jelena P.; Milonjić, Slobodan K.; Leovac, Vukadin M.

(2013)

TY  - JOUR
AU  - Marković, Jelena P.
AU  - Milonjić, Slobodan K.
AU  - Leovac, Vukadin M.
PY  - 2013
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5827
AB  - The zirconia sol was prepared from a zirconium oxychloride solution by forced hydrolysis at 102 degrees C. The prepared sol consisted of almost spherical, monoclinic, hydrated zirconia particles of 61 nm in diameter. The stability of zirconia sol in the presence of various inorganic electrolytes (LiCl, NaCl, KCl, CsCl, KBr, KI, KNO3 and K2SO4) was studied by the potentiometric titration method. The dependence of the critical concentration of coagulation (ccc) on the dispersion pH was determined for all studied electrolytes. The critical coagulation concentration values for all investigated electrolytes were lower at higher pH values. These values for all 1:1 electrolytes were the same within the range of experimental error. For a given pH value, the cccs of K2SO4 are 3-4 orders of magnitude lower than the corresponding values for the 1:1 electrolytes.
T2  - Journal of the Serbian Chemical Society
T1  - Stability of zirconia sol in the presence of various inorganic electrolytes
VL  - 78
IS  - 12
SP  - 1975
EP  - 1982
DO  - 10.2298/JSC131021118M
ER  - 
@article{
author = "Marković, Jelena P. and Milonjić, Slobodan K. and Leovac, Vukadin M.",
year = "2013",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/5827",
abstract = "The zirconia sol was prepared from a zirconium oxychloride solution by forced hydrolysis at 102 degrees C. The prepared sol consisted of almost spherical, monoclinic, hydrated zirconia particles of 61 nm in diameter. The stability of zirconia sol in the presence of various inorganic electrolytes (LiCl, NaCl, KCl, CsCl, KBr, KI, KNO3 and K2SO4) was studied by the potentiometric titration method. The dependence of the critical concentration of coagulation (ccc) on the dispersion pH was determined for all studied electrolytes. The critical coagulation concentration values for all investigated electrolytes were lower at higher pH values. These values for all 1:1 electrolytes were the same within the range of experimental error. For a given pH value, the cccs of K2SO4 are 3-4 orders of magnitude lower than the corresponding values for the 1:1 electrolytes.",
journal = "Journal of the Serbian Chemical Society",
title = "Stability of zirconia sol in the presence of various inorganic electrolytes",
volume = "78",
number = "12",
pages = "1975-1982",
doi = "10.2298/JSC131021118M"
}
Marković, J. P., Milonjić, S. K.,& Leovac, V. M. (2013). Stability of zirconia sol in the presence of various inorganic electrolytes.
Journal of the Serbian Chemical Society, 78(12), 1975-1982.
https://doi.org/10.2298/JSC131021118M
Marković JP, Milonjić SK, Leovac VM. Stability of zirconia sol in the presence of various inorganic electrolytes. Journal of the Serbian Chemical Society. 2013;78(12):1975-1982
Marković Jelena P., Milonjić Slobodan K., Leovac Vukadin M., "Stability of zirconia sol in the presence of various inorganic electrolytes" Journal of the Serbian Chemical Society, 78, no. 12 (2013):1975-1982,
https://doi.org/10.2298/JSC131021118M .
1

(E)-4-[(2-Carbamoylhydrazinylidene)methyl]-3-hydroxy-5-hydroxymethyl-2-methylpyridin-1-ium nitrate

Novaković, Slađana B.; Bogdanović, Goran A.; Leovac, Vukadin M.; Rodic, Marko V.; Vojinović-Ješić, Ljiljana S.; Ivkovic, Sonja

(2013)

TY  - JOUR
AU  - Novaković, Slađana B.
AU  - Bogdanović, Goran A.
AU  - Leovac, Vukadin M.
AU  - Rodic, Marko V.
AU  - Vojinović-Ješić, Ljiljana S.
AU  - Ivkovic, Sonja
PY  - 2013
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5580
AB  - The title compound, C9H13N4O3+center dot NO3-, is the first structurally characterized Schiff base derived from semicarbazide and pyridoxal. Unusually for an unsubstituted semicarbazone, the compound adopts a syn conformation, in which the carbonyl O atom is in a cis disposition relative to the azomethine N atom. This arrangement is supported by a pair of hydrogen bonds between the organic cation and the nitrate anion. The cation is essentially planar, with only a hydroxymethyl O atom deviating significantly from the mean plane of the remaining atoms (r.m.s. deviation of the remaining non-H atoms = 0.01 angstrom). The molecules are linked into flat layers by N-H center dot center dot center dot O and C-H center dot center dot center dot O hydrogen bonds. O-H center dot center dot center dot O hydrogen bonds involving the hydroxymethyl group as a donor interconnect the layers into a three-dimensional structure.
T2  - Acta Crystallographica. Section C: Crystal Structure Communications
T1  - (E)-4-[(2-Carbamoylhydrazinylidene)methyl]-3-hydroxy-5-hydroxymethyl-2-methylpyridin-1-ium nitrate
VL  - 69
SP  - 761
EP  - +
DO  - 10.1107/S0108270113013929
ER  - 
@article{
author = "Novaković, Slađana B. and Bogdanović, Goran A. and Leovac, Vukadin M. and Rodic, Marko V. and Vojinović-Ješić, Ljiljana S. and Ivkovic, Sonja",
year = "2013",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/5580",
abstract = "The title compound, C9H13N4O3+center dot NO3-, is the first structurally characterized Schiff base derived from semicarbazide and pyridoxal. Unusually for an unsubstituted semicarbazone, the compound adopts a syn conformation, in which the carbonyl O atom is in a cis disposition relative to the azomethine N atom. This arrangement is supported by a pair of hydrogen bonds between the organic cation and the nitrate anion. The cation is essentially planar, with only a hydroxymethyl O atom deviating significantly from the mean plane of the remaining atoms (r.m.s. deviation of the remaining non-H atoms = 0.01 angstrom). The molecules are linked into flat layers by N-H center dot center dot center dot O and C-H center dot center dot center dot O hydrogen bonds. O-H center dot center dot center dot O hydrogen bonds involving the hydroxymethyl group as a donor interconnect the layers into a three-dimensional structure.",
journal = "Acta Crystallographica. Section C: Crystal Structure Communications",
title = "(E)-4-[(2-Carbamoylhydrazinylidene)methyl]-3-hydroxy-5-hydroxymethyl-2-methylpyridin-1-ium nitrate",
volume = "69",
pages = "761-+",
doi = "10.1107/S0108270113013929"
}
Novaković, S. B., Bogdanović, G. A., Leovac, V. M., Rodic, M. V., Vojinović-Ješić, L. S.,& Ivkovic, S. (2013). (E)-4-[(2-Carbamoylhydrazinylidene)methyl]-3-hydroxy-5-hydroxymethyl-2-methylpyridin-1-ium nitrate.
Acta Crystallographica. Section C: Crystal Structure Communications, 69, 761-+.
https://doi.org/10.1107/S0108270113013929
Novaković SB, Bogdanović GA, Leovac VM, Rodic MV, Vojinović-Ješić LS, Ivkovic S. (E)-4-[(2-Carbamoylhydrazinylidene)methyl]-3-hydroxy-5-hydroxymethyl-2-methylpyridin-1-ium nitrate. Acta Crystallographica. Section C: Crystal Structure Communications. 2013;69:761-+
Novaković Slađana B., Bogdanović Goran A., Leovac Vukadin M., Rodic Marko V., Vojinović-Ješić Ljiljana S., Ivkovic Sonja, "(E)-4-[(2-Carbamoylhydrazinylidene)methyl]-3-hydroxy-5-hydroxymethyl-2-methylpyridin-1-ium nitrate" Acta Crystallographica. Section C: Crystal Structure Communications, 69 (2013):761-+,
https://doi.org/10.1107/S0108270113013929 .
1
1
1

Transition metal complexes with Girard reagents and their hydrazones

Vojinović-Ješić, Ljiljana S.; Novaković, Slađana B.; Leovac, Vukadin M.; Cesljevic, Valerija I.

(2012)

TY  - JOUR
AU  - Vojinović-Ješić, Ljiljana S.
AU  - Novaković, Slađana B.
AU  - Leovac, Vukadin M.
AU  - Cesljevic, Valerija I.
PY  - 2012
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5129
AB  - This is the first review dealing with the coordination chemistry of metal complexes with Girard reagents and their hydrazones. The short introduction indicates the chemical properties and significance of these organic compounds. The next section briefly describes synthetic methods for preparing complexes with Girard reagents, as well as the modes of coordination of these ligands. The last two extensive sections review the preparation, stereochemistry and structural characteristics of metal complexes with Girard hydrazones, including also some newer non-hydrazonic derivatives of Girard reagents.
T2  - Journal of the Serbian Chemical Society
T1  - Transition metal complexes with Girard reagents and their hydrazones
VL  - 77
IS  - 9
SP  - 1129
EP  - 1155
DO  - 10.2298/JSC120704083V
ER  - 
@article{
author = "Vojinović-Ješić, Ljiljana S. and Novaković, Slađana B. and Leovac, Vukadin M. and Cesljevic, Valerija I.",
year = "2012",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/5129",
abstract = "This is the first review dealing with the coordination chemistry of metal complexes with Girard reagents and their hydrazones. The short introduction indicates the chemical properties and significance of these organic compounds. The next section briefly describes synthetic methods for preparing complexes with Girard reagents, as well as the modes of coordination of these ligands. The last two extensive sections review the preparation, stereochemistry and structural characteristics of metal complexes with Girard hydrazones, including also some newer non-hydrazonic derivatives of Girard reagents.",
journal = "Journal of the Serbian Chemical Society",
title = "Transition metal complexes with Girard reagents and their hydrazones",
volume = "77",
number = "9",
pages = "1129-1155",
doi = "10.2298/JSC120704083V"
}
Vojinović-Ješić, L. S., Novaković, S. B., Leovac, V. M.,& Cesljevic, V. I. (2012). Transition metal complexes with Girard reagents and their hydrazones.
Journal of the Serbian Chemical Society, 77(9), 1129-1155.
https://doi.org/10.2298/JSC120704083V
Vojinović-Ješić LS, Novaković SB, Leovac VM, Cesljevic VI. Transition metal complexes with Girard reagents and their hydrazones. Journal of the Serbian Chemical Society. 2012;77(9):1129-1155
Vojinović-Ješić Ljiljana S., Novaković Slađana B., Leovac Vukadin M., Cesljevic Valerija I., "Transition metal complexes with Girard reagents and their hydrazones" Journal of the Serbian Chemical Society, 77, no. 9 (2012):1129-1155,
https://doi.org/10.2298/JSC120704083V .
9
10
11

Synthesis, characterization and antitumor activity of polymeric copper(II) complexes with thiosemicarbazones of 3-methyl-5-oxo-1-phenyl-3-pyrazolin-4-carboxaldehyde and 5-oxo-3-phenyl-3-pyrazolin-4-carboxaldehyde

Leovac, Vukadin M.; Bogdanović, Goran A.; Jovanovic, Ljiljana S.; Joksović, Ljubinka G.; Marković, Violeta; Joksović, Milan D.; Misirlić-Denčić, Sonja; Isaković, Anđelka; Markovic, Ivanka; Heinemann, Frank W.; Trifunovic, Srecko; Dalovic, Ivica

(2011)

TY  - JOUR
AU  - Leovac, Vukadin M.
AU  - Bogdanović, Goran A.
AU  - Jovanovic, Ljiljana S.
AU  - Joksović, Ljubinka G.
AU  - Marković, Violeta
AU  - Joksović, Milan D.
AU  - Misirlić-Denčić, Sonja
AU  - Isaković, Anđelka
AU  - Markovic, Ivanka
AU  - Heinemann, Frank W.
AU  - Trifunovic, Srecko
AU  - Dalovic, Ivica
PY  - 2011
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4592
AB  - New polymeric copper(II) complexes with two tridentate ONS thiosemicarbazone ligands containing substituted pyrazolone moiety were synthesized and characterized by means of spectroscopic, electrochemical and crystallographic techniques. While both ligands exist as different tautomers in the solid state and DMSO-d(6) solution, Cu(II) ion coordinates the ligands from the same tautomeric form with square-pyramidal geometry around each Cu atom. In the crystal structures, the copper(II) complex cation forms polymeric chains {[Cu(L)Cl(+)]}(n) with a bridging chlorine atom. One of the complexes was found to have a significantly higher cytotoxic potential in comparison with cisplatin in inhibition of several cell lines (HL60, REH, C6, L929 and B16). The results obtained on the basis of flow cytometry indicated that apoptosis could be possible mechanism of cell death. (C) 2011 Elsevier Inc. All rights reserved.
T2  - Journal of Inorganic Biochemistry
T1  - Synthesis, characterization and antitumor activity of polymeric copper(II) complexes with thiosemicarbazones of 3-methyl-5-oxo-1-phenyl-3-pyrazolin-4-carboxaldehyde and 5-oxo-3-phenyl-3-pyrazolin-4-carboxaldehyde
VL  - 105
IS  - 11
SP  - 1413
EP  - 1421
DO  - 10.1016/j.jinorgbio.2011.07.021
ER  - 
@article{
author = "Leovac, Vukadin M. and Bogdanović, Goran A. and Jovanovic, Ljiljana S. and Joksović, Ljubinka G. and Marković, Violeta and Joksović, Milan D. and Misirlić-Denčić, Sonja and Isaković, Anđelka and Markovic, Ivanka and Heinemann, Frank W. and Trifunovic, Srecko and Dalovic, Ivica",
year = "2011",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4592",
abstract = "New polymeric copper(II) complexes with two tridentate ONS thiosemicarbazone ligands containing substituted pyrazolone moiety were synthesized and characterized by means of spectroscopic, electrochemical and crystallographic techniques. While both ligands exist as different tautomers in the solid state and DMSO-d(6) solution, Cu(II) ion coordinates the ligands from the same tautomeric form with square-pyramidal geometry around each Cu atom. In the crystal structures, the copper(II) complex cation forms polymeric chains {[Cu(L)Cl(+)]}(n) with a bridging chlorine atom. One of the complexes was found to have a significantly higher cytotoxic potential in comparison with cisplatin in inhibition of several cell lines (HL60, REH, C6, L929 and B16). The results obtained on the basis of flow cytometry indicated that apoptosis could be possible mechanism of cell death. (C) 2011 Elsevier Inc. All rights reserved.",
journal = "Journal of Inorganic Biochemistry",
title = "Synthesis, characterization and antitumor activity of polymeric copper(II) complexes with thiosemicarbazones of 3-methyl-5-oxo-1-phenyl-3-pyrazolin-4-carboxaldehyde and 5-oxo-3-phenyl-3-pyrazolin-4-carboxaldehyde",
volume = "105",
number = "11",
pages = "1413-1421",
doi = "10.1016/j.jinorgbio.2011.07.021"
}
Leovac, V. M., Bogdanović, G. A., Jovanovic, L. S., Joksović, L. G., Marković, V., Joksović, M. D., Misirlić-Denčić, S., Isaković, A., Markovic, I., Heinemann, F. W., Trifunovic, S.,& Dalovic, I. (2011). Synthesis, characterization and antitumor activity of polymeric copper(II) complexes with thiosemicarbazones of 3-methyl-5-oxo-1-phenyl-3-pyrazolin-4-carboxaldehyde and 5-oxo-3-phenyl-3-pyrazolin-4-carboxaldehyde.
Journal of Inorganic Biochemistry, 105(11), 1413-1421.
https://doi.org/10.1016/j.jinorgbio.2011.07.021
Leovac VM, Bogdanović GA, Jovanovic LS, Joksović LG, Marković V, Joksović MD, Misirlić-Denčić S, Isaković A, Markovic I, Heinemann FW, Trifunovic S, Dalovic I. Synthesis, characterization and antitumor activity of polymeric copper(II) complexes with thiosemicarbazones of 3-methyl-5-oxo-1-phenyl-3-pyrazolin-4-carboxaldehyde and 5-oxo-3-phenyl-3-pyrazolin-4-carboxaldehyde. Journal of Inorganic Biochemistry. 2011;105(11):1413-1421
Leovac Vukadin M., Bogdanović Goran A., Jovanovic Ljiljana S., Joksović Ljubinka G., Marković Violeta, Joksović Milan D., Misirlić-Denčić Sonja, Isaković Anđelka, Markovic Ivanka, Heinemann Frank W., Trifunovic Srecko, Dalovic Ivica, "Synthesis, characterization and antitumor activity of polymeric copper(II) complexes with thiosemicarbazones of 3-methyl-5-oxo-1-phenyl-3-pyrazolin-4-carboxaldehyde and 5-oxo-3-phenyl-3-pyrazolin-4-carboxaldehyde" Journal of Inorganic Biochemistry, 105, no. 11 (2011):1413-1421,
https://doi.org/10.1016/j.jinorgbio.2011.07.021 .
3
29
36
41

Crystal structure of chlorido-tris(3-amino-5-phenyl-1H-pyrazole-N-2)zinc(II) chloride, [ZnCl(C9H9N3)(3)]Cl

Jacimovic, Zeljko K.; Novaković, Slađana B.; Bogdanović, Goran A.; Belosevic, Svetlana; Jokic, Anja; Leovac, Vukadin M.

(2011)

TY  - JOUR
AU  - Jacimovic, Zeljko K.
AU  - Novaković, Slađana B.
AU  - Bogdanović, Goran A.
AU  - Belosevic, Svetlana
AU  - Jokic, Anja
AU  - Leovac, Vukadin M.
PY  - 2011
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4532
AB  - C27H27Cl2N9Zn, tetragonal, P (4) over bar2(1)c (no. 114), a = 17.522(2) angstrom, C = 18.583(3) angstrom, V= 5705.4 angstrom(3), Z = 8, R-gt(F) = 0.040, wR(ref)(F-2) = 0.114, T = 293 K.
T2  - Zeitschrift fur Kristallographie = New Crystal Structures
T1  - Crystal structure of chlorido-tris(3-amino-5-phenyl-1H-pyrazole-N-2)zinc(II) chloride, [ZnCl(C9H9N3)(3)]Cl
VL  - 226
IS  - 3
SP  - 397
EP  - 399
DO  - 10.1524/ncrs.2011.0178
ER  - 
@article{
author = "Jacimovic, Zeljko K. and Novaković, Slađana B. and Bogdanović, Goran A. and Belosevic, Svetlana and Jokic, Anja and Leovac, Vukadin M.",
year = "2011",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4532",
abstract = "C27H27Cl2N9Zn, tetragonal, P (4) over bar2(1)c (no. 114), a = 17.522(2) angstrom, C = 18.583(3) angstrom, V= 5705.4 angstrom(3), Z = 8, R-gt(F) = 0.040, wR(ref)(F-2) = 0.114, T = 293 K.",
journal = "Zeitschrift fur Kristallographie = New Crystal Structures",
title = "Crystal structure of chlorido-tris(3-amino-5-phenyl-1H-pyrazole-N-2)zinc(II) chloride, [ZnCl(C9H9N3)(3)]Cl",
volume = "226",
number = "3",
pages = "397-399",
doi = "10.1524/ncrs.2011.0178"
}
Jacimovic, Z. K., Novaković, S. B., Bogdanović, G. A., Belosevic, S., Jokic, A.,& Leovac, V. M. (2011). Crystal structure of chlorido-tris(3-amino-5-phenyl-1H-pyrazole-N-2)zinc(II) chloride, [ZnCl(C9H9N3)(3)]Cl.
Zeitschrift fur Kristallographie = New Crystal Structures, 226(3), 397-399.
https://doi.org/10.1524/ncrs.2011.0178
Jacimovic ZK, Novaković SB, Bogdanović GA, Belosevic S, Jokic A, Leovac VM. Crystal structure of chlorido-tris(3-amino-5-phenyl-1H-pyrazole-N-2)zinc(II) chloride, [ZnCl(C9H9N3)(3)]Cl. Zeitschrift fur Kristallographie = New Crystal Structures. 2011;226(3):397-399
Jacimovic Zeljko K., Novaković Slađana B., Bogdanović Goran A., Belosevic Svetlana, Jokic Anja, Leovac Vukadin M., "Crystal structure of chlorido-tris(3-amino-5-phenyl-1H-pyrazole-N-2)zinc(II) chloride, [ZnCl(C9H9N3)(3)]Cl" Zeitschrift fur Kristallographie = New Crystal Structures, 226, no. 3 (2011):397-399,
https://doi.org/10.1524/ncrs.2011.0178 .
1
1
1

Bis{N,N,N-trimethyl-2-oxo-2-[2-(2,3,4-trihydroxybenzylidene)hydrazinyl]ethanaminium} tetrachloridozincate(II) methanol solvate

Novaković, Slađana B.; Draskovic, Bojana M.; Vojinović-Ješić, Ljiljana S.; Cesljevic, Valerija I.; Leovac, Vukadin M.

(2010)

TY  - JOUR
AU  - Novaković, Slađana B.
AU  - Draskovic, Bojana M.
AU  - Vojinović-Ješić, Ljiljana S.
AU  - Cesljevic, Valerija I.
AU  - Leovac, Vukadin M.
PY  - 2010
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3923
AB  - The asymmetric unit of the title compound, (C12H18N3O4)(2)[ZnCl4]center dot CH3OH, consists of two Girard reagent-based cations, a tetrachloridozincate anion and a molecule of methanol as solvate. These components are interconnected in the crystal structure by an extensive network of O-H center dot center dot center dot O, N-H center dot center dot center dot O, C-H center dot center dot center dot O, O-H center dot center dot center dot N, O-H center dot center dot center dot Cl, N-H center dot center dot center dot Cl and C-H center dot center dot center dot Cl hydrogen bonds. The shortest intermolecular interaction is realized between the cation and anion [H center dot center dot center dot Cl = 2.29 (5) angstrom; O-H center dot center dot center dot Cl = 167 (3)degrees]. C-H center dot center dot center dot O interactions also play a important role in the interconnection of the cations.
T2  - Acta Crystallographica. Section E: Structure Reports Online
T1  - Bis{N,N,N-trimethyl-2-oxo-2-[2-(2,3,4-trihydroxybenzylidene)hydrazinyl]ethanaminium} tetrachloridozincate(II) methanol solvate
VL  - 66
SP  - M328
EP  - U3816
DO  - 10.1107/S160053681000615X
ER  - 
@article{
author = "Novaković, Slađana B. and Draskovic, Bojana M. and Vojinović-Ješić, Ljiljana S. and Cesljevic, Valerija I. and Leovac, Vukadin M.",
year = "2010",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3923",
abstract = "The asymmetric unit of the title compound, (C12H18N3O4)(2)[ZnCl4]center dot CH3OH, consists of two Girard reagent-based cations, a tetrachloridozincate anion and a molecule of methanol as solvate. These components are interconnected in the crystal structure by an extensive network of O-H center dot center dot center dot O, N-H center dot center dot center dot O, C-H center dot center dot center dot O, O-H center dot center dot center dot N, O-H center dot center dot center dot Cl, N-H center dot center dot center dot Cl and C-H center dot center dot center dot Cl hydrogen bonds. The shortest intermolecular interaction is realized between the cation and anion [H center dot center dot center dot Cl = 2.29 (5) angstrom; O-H center dot center dot center dot Cl = 167 (3)degrees]. C-H center dot center dot center dot O interactions also play a important role in the interconnection of the cations.",
journal = "Acta Crystallographica. Section E: Structure Reports Online",
title = "Bis{N,N,N-trimethyl-2-oxo-2-[2-(2,3,4-trihydroxybenzylidene)hydrazinyl]ethanaminium} tetrachloridozincate(II) methanol solvate",
volume = "66",
pages = "M328-U3816",
doi = "10.1107/S160053681000615X"
}
Novaković, S. B., Draskovic, B. M., Vojinović-Ješić, L. S., Cesljevic, V. I.,& Leovac, V. M. (2010). Bis{N,N,N-trimethyl-2-oxo-2-[2-(2,3,4-trihydroxybenzylidene)hydrazinyl]ethanaminium} tetrachloridozincate(II) methanol solvate.
Acta Crystallographica. Section E: Structure Reports Online, 66, M328-U3816.
https://doi.org/10.1107/S160053681000615X
Novaković SB, Draskovic BM, Vojinović-Ješić LS, Cesljevic VI, Leovac VM. Bis{N,N,N-trimethyl-2-oxo-2-[2-(2,3,4-trihydroxybenzylidene)hydrazinyl]ethanaminium} tetrachloridozincate(II) methanol solvate. Acta Crystallographica. Section E: Structure Reports Online. 2010;66:M328-U3816
Novaković Slađana B., Draskovic Bojana M., Vojinović-Ješić Ljiljana S., Cesljevic Valerija I., Leovac Vukadin M., "Bis{N,N,N-trimethyl-2-oxo-2-[2-(2,3,4-trihydroxybenzylidene)hydrazinyl]ethanaminium} tetrachloridozincate(II) methanol solvate" Acta Crystallographica. Section E: Structure Reports Online, 66 (2010):M328-U3816,
https://doi.org/10.1107/S160053681000615X .
1
3
3

Transition metal complexes with Girard reagent-based ligands. Part V. Synthesis, characterization and crystal structure of pentagonal-bipyramidal manganese(II) complex with 2,6-diacetylpyridine bis(Girard-T hydrazone)

Vojinović-Ješić, Ljiljana S.; Cesljevic, Valerija I.; Bogdanović, Goran A.; Leovac, Vukadin M.; Szecsenyi, Katalin Meszaros; Divjakovic, Vladimir; Joksović, Milan D.

(2010)

TY  - JOUR
AU  - Vojinović-Ješić, Ljiljana S.
AU  - Cesljevic, Valerija I.
AU  - Bogdanović, Goran A.
AU  - Leovac, Vukadin M.
AU  - Szecsenyi, Katalin Meszaros
AU  - Divjakovic, Vladimir
AU  - Joksović, Milan D.
PY  - 2010
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4079
AB  - The article describes the synthesis and crystal structure of the Mn(II) complex with 2,6-diacetylpyridine bis (Girard-T hydrazone), (H(2)dap(GT)(2))(2+), of the formula [Mn(H(2)dap(GT)(2))(NCS)(2)](NCS)(2)center dot MeOH. The complex has a pentagonal-bipyramidal coordination geometry, with pentadentate N(3)O(2) ligand in the equatorial plane and two isothiocyanato groups in the axial positions. Both the ligand and the complex are characterized by their FT-IR spectra and thermal data. (C) 2010 Elsevier B.V. All rights reserved.
T2  - Inorganic Chemistry Communications
T1  - Transition metal complexes with Girard reagent-based ligands. Part V. Synthesis, characterization and crystal structure of pentagonal-bipyramidal manganese(II) complex with 2,6-diacetylpyridine bis(Girard-T hydrazone)
VL  - 13
IS  - 9
SP  - 1085
EP  - 1088
DO  - 10.1016/j.inoche.2010.06.022
ER  - 
@article{
author = "Vojinović-Ješić, Ljiljana S. and Cesljevic, Valerija I. and Bogdanović, Goran A. and Leovac, Vukadin M. and Szecsenyi, Katalin Meszaros and Divjakovic, Vladimir and Joksović, Milan D.",
year = "2010",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4079",
abstract = "The article describes the synthesis and crystal structure of the Mn(II) complex with 2,6-diacetylpyridine bis (Girard-T hydrazone), (H(2)dap(GT)(2))(2+), of the formula [Mn(H(2)dap(GT)(2))(NCS)(2)](NCS)(2)center dot MeOH. The complex has a pentagonal-bipyramidal coordination geometry, with pentadentate N(3)O(2) ligand in the equatorial plane and two isothiocyanato groups in the axial positions. Both the ligand and the complex are characterized by their FT-IR spectra and thermal data. (C) 2010 Elsevier B.V. All rights reserved.",
journal = "Inorganic Chemistry Communications",
title = "Transition metal complexes with Girard reagent-based ligands. Part V. Synthesis, characterization and crystal structure of pentagonal-bipyramidal manganese(II) complex with 2,6-diacetylpyridine bis(Girard-T hydrazone)",
volume = "13",
number = "9",
pages = "1085-1088",
doi = "10.1016/j.inoche.2010.06.022"
}
Vojinović-Ješić, L. S., Cesljevic, V. I., Bogdanović, G. A., Leovac, V. M., Szecsenyi, K. M., Divjakovic, V.,& Joksović, M. D. (2010). Transition metal complexes with Girard reagent-based ligands. Part V. Synthesis, characterization and crystal structure of pentagonal-bipyramidal manganese(II) complex with 2,6-diacetylpyridine bis(Girard-T hydrazone).
Inorganic Chemistry Communications, 13(9), 1085-1088.
https://doi.org/10.1016/j.inoche.2010.06.022
Vojinović-Ješić LS, Cesljevic VI, Bogdanović GA, Leovac VM, Szecsenyi KM, Divjakovic V, Joksović MD. Transition metal complexes with Girard reagent-based ligands. Part V. Synthesis, characterization and crystal structure of pentagonal-bipyramidal manganese(II) complex with 2,6-diacetylpyridine bis(Girard-T hydrazone). Inorganic Chemistry Communications. 2010;13(9):1085-1088
Vojinović-Ješić Ljiljana S., Cesljevic Valerija I., Bogdanović Goran A., Leovac Vukadin M., Szecsenyi Katalin Meszaros, Divjakovic Vladimir, Joksović Milan D., "Transition metal complexes with Girard reagent-based ligands. Part V. Synthesis, characterization and crystal structure of pentagonal-bipyramidal manganese(II) complex with 2,6-diacetylpyridine bis(Girard-T hydrazone)" Inorganic Chemistry Communications, 13, no. 9 (2010):1085-1088,
https://doi.org/10.1016/j.inoche.2010.06.022 .
13
12
14

Transition metal complexes with pyrazole-based ligands. Part 28. Synthesis, structural, DFT and thermal studies of cadmium(II) halides and zinc(II) chloride complexes with 3,5-dimethylpyrazole-1-carboxamidine

Hollo, Berta; Tomić, Zoran D.; Pogany, Peter; Kovacs, Attila; Leovac, Vukadin M.; Szecsenyi, Katalin Meszaros

(2009)

TY  - JOUR
AU  - Hollo, Berta
AU  - Tomić, Zoran D.
AU  - Pogany, Peter
AU  - Kovacs, Attila
AU  - Leovac, Vukadin M.
AU  - Szecsenyi, Katalin Meszaros
PY  - 2009
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3839
AB  - The complex formation of 3,5-dimethylpyrazole-1-carboxamidinium nitrate, HL center dot HNO(3) with ammine complexes of cadmium(II) halides (Cl, Br, I) and zinc(II) chloride has been investigated under self-controlled reaction conditions. The complexes have been characterized by X-ray diffraction, FT-IR spectroscopy, thermal analysis and quantum chemical calculations. In the case of cadmium bromide and iodide salts, isostructural complexes with composition of [CdX(2)(HL)(2)] were formed. With CdCl(2) a binuclear octahedral [Cd(2)(HL)(4)(mu-Cl)(2)](NO(3))(2) complex is obtained. Zinc(II) chloride with HL center dot HNO(3) gives [Zn(HL)(2)Cl]NO(3), the zinc center exhibiting severely distorted five-coordinate stereochemistry, intermediate between an ideal trigonal bipyramid and a square pyramid. The course of complex formation as well as the thermal properties of the compounds has been explained using the HSAB principle. The assignment of the FT-IR spectra was supported by DFT computations. (C) 2009 Elsevier Ltd. All rights reserved.
T2  - Polyhedron
T1  - Transition metal complexes with pyrazole-based ligands. Part 28. Synthesis, structural, DFT and thermal studies of cadmium(II) halides and zinc(II) chloride complexes with 3,5-dimethylpyrazole-1-carboxamidine
VL  - 28
IS  - 17
SP  - 3881
EP  - 3889
DO  - 10.1016/j.poly.2009.08.020
ER  - 
@article{
author = "Hollo, Berta and Tomić, Zoran D. and Pogany, Peter and Kovacs, Attila and Leovac, Vukadin M. and Szecsenyi, Katalin Meszaros",
year = "2009",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3839",
abstract = "The complex formation of 3,5-dimethylpyrazole-1-carboxamidinium nitrate, HL center dot HNO(3) with ammine complexes of cadmium(II) halides (Cl, Br, I) and zinc(II) chloride has been investigated under self-controlled reaction conditions. The complexes have been characterized by X-ray diffraction, FT-IR spectroscopy, thermal analysis and quantum chemical calculations. In the case of cadmium bromide and iodide salts, isostructural complexes with composition of [CdX(2)(HL)(2)] were formed. With CdCl(2) a binuclear octahedral [Cd(2)(HL)(4)(mu-Cl)(2)](NO(3))(2) complex is obtained. Zinc(II) chloride with HL center dot HNO(3) gives [Zn(HL)(2)Cl]NO(3), the zinc center exhibiting severely distorted five-coordinate stereochemistry, intermediate between an ideal trigonal bipyramid and a square pyramid. The course of complex formation as well as the thermal properties of the compounds has been explained using the HSAB principle. The assignment of the FT-IR spectra was supported by DFT computations. (C) 2009 Elsevier Ltd. All rights reserved.",
journal = "Polyhedron",
title = "Transition metal complexes with pyrazole-based ligands. Part 28. Synthesis, structural, DFT and thermal studies of cadmium(II) halides and zinc(II) chloride complexes with 3,5-dimethylpyrazole-1-carboxamidine",
volume = "28",
number = "17",
pages = "3881-3889",
doi = "10.1016/j.poly.2009.08.020"
}
Hollo, B., Tomić, Z. D., Pogany, P., Kovacs, A., Leovac, V. M.,& Szecsenyi, K. M. (2009). Transition metal complexes with pyrazole-based ligands. Part 28. Synthesis, structural, DFT and thermal studies of cadmium(II) halides and zinc(II) chloride complexes with 3,5-dimethylpyrazole-1-carboxamidine.
Polyhedron, 28(17), 3881-3889.
https://doi.org/10.1016/j.poly.2009.08.020
Hollo B, Tomić ZD, Pogany P, Kovacs A, Leovac VM, Szecsenyi KM. Transition metal complexes with pyrazole-based ligands. Part 28. Synthesis, structural, DFT and thermal studies of cadmium(II) halides and zinc(II) chloride complexes with 3,5-dimethylpyrazole-1-carboxamidine. Polyhedron. 2009;28(17):3881-3889
Hollo Berta, Tomić Zoran D., Pogany Peter, Kovacs Attila, Leovac Vukadin M., Szecsenyi Katalin Meszaros, "Transition metal complexes with pyrazole-based ligands. Part 28. Synthesis, structural, DFT and thermal studies of cadmium(II) halides and zinc(II) chloride complexes with 3,5-dimethylpyrazole-1-carboxamidine" Polyhedron, 28, no. 17 (2009):3881-3889,
https://doi.org/10.1016/j.poly.2009.08.020 .
25
26
29

Transition metal complexes with pyrazole-based ligands. Part 29. Reactions of zinc(II) and mercury(II) thiocyanate with 4-acetyl-3-amino-5-methylpyrazole

Jacimovic, Zeljko K.; Bogdanović, Goran A.; Hollo, Berta; Leovac, Vukadin M.; Szecsenyi, Katalin Meszaros

(2009)

TY  - JOUR
AU  - Jacimovic, Zeljko K.
AU  - Bogdanović, Goran A.
AU  - Hollo, Berta
AU  - Leovac, Vukadin M.
AU  - Szecsenyi, Katalin Meszaros
PY  - 2009
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3843
AB  - The work is concerned with the crystal and molecular structures of zinc(II) and mercury(II) complexes with 4-acetyl-3-amino-5-methylpyrazole (aamp) of the coordination formulae [Zn(NCS)(2)(aaMP)(2)] and (HaaMP)(2)[Hg(SCN)(4)]. The zinc(II) complex was obtained by the reaction of a warm methanolic solution of aamp with a mixture of zinc(II) nitrate and ammonium thiocyanate, whereas the mercury(II) complex was prepared by the reaction of a warm methanolic solution of aamp and a warm, slightly acidified aqueous solution of [Hg(SCN)(4)](2-). Both complexes have a tetrahedral geometry, which in the case of zinc complex is formed by monodentate coordination of two aamp molecules and two isothiocyanate groups. The Zn(II) and Hg(II) atoms have significantly deformed coordination geometry. In both crystal structures the pyrazole derivative has a planar form, probably stabilized by an intramolecular N-H center dot center dot center dot O hydrogen bond. Apart from the X-ray structural analysis, the isolated complexes were characterized by elemental analysis, IR spectroscopy, conductometric measurements and thermal analysis.
T2  - Journal of the Serbian Chemical Society
T1  - Transition metal complexes with pyrazole-based ligands. Part 29. Reactions of zinc(II) and mercury(II) thiocyanate with 4-acetyl-3-amino-5-methylpyrazole
VL  - 74
IS  - 11
SP  - 1259
EP  - 1271
DO  - 10.2298/JSC0911259J
ER  - 
@article{
author = "Jacimovic, Zeljko K. and Bogdanović, Goran A. and Hollo, Berta and Leovac, Vukadin M. and Szecsenyi, Katalin Meszaros",
year = "2009",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3843",
abstract = "The work is concerned with the crystal and molecular structures of zinc(II) and mercury(II) complexes with 4-acetyl-3-amino-5-methylpyrazole (aamp) of the coordination formulae [Zn(NCS)(2)(aaMP)(2)] and (HaaMP)(2)[Hg(SCN)(4)]. The zinc(II) complex was obtained by the reaction of a warm methanolic solution of aamp with a mixture of zinc(II) nitrate and ammonium thiocyanate, whereas the mercury(II) complex was prepared by the reaction of a warm methanolic solution of aamp and a warm, slightly acidified aqueous solution of [Hg(SCN)(4)](2-). Both complexes have a tetrahedral geometry, which in the case of zinc complex is formed by monodentate coordination of two aamp molecules and two isothiocyanate groups. The Zn(II) and Hg(II) atoms have significantly deformed coordination geometry. In both crystal structures the pyrazole derivative has a planar form, probably stabilized by an intramolecular N-H center dot center dot center dot O hydrogen bond. Apart from the X-ray structural analysis, the isolated complexes were characterized by elemental analysis, IR spectroscopy, conductometric measurements and thermal analysis.",
journal = "Journal of the Serbian Chemical Society",
title = "Transition metal complexes with pyrazole-based ligands. Part 29. Reactions of zinc(II) and mercury(II) thiocyanate with 4-acetyl-3-amino-5-methylpyrazole",
volume = "74",
number = "11",
pages = "1259-1271",
doi = "10.2298/JSC0911259J"
}
Jacimovic, Z. K., Bogdanović, G. A., Hollo, B., Leovac, V. M.,& Szecsenyi, K. M. (2009). Transition metal complexes with pyrazole-based ligands. Part 29. Reactions of zinc(II) and mercury(II) thiocyanate with 4-acetyl-3-amino-5-methylpyrazole.
Journal of the Serbian Chemical Society, 74(11), 1259-1271.
https://doi.org/10.2298/JSC0911259J
Jacimovic ZK, Bogdanović GA, Hollo B, Leovac VM, Szecsenyi KM. Transition metal complexes with pyrazole-based ligands. Part 29. Reactions of zinc(II) and mercury(II) thiocyanate with 4-acetyl-3-amino-5-methylpyrazole. Journal of the Serbian Chemical Society. 2009;74(11):1259-1271
Jacimovic Zeljko K., Bogdanović Goran A., Hollo Berta, Leovac Vukadin M., Szecsenyi Katalin Meszaros, "Transition metal complexes with pyrazole-based ligands. Part 29. Reactions of zinc(II) and mercury(II) thiocyanate with 4-acetyl-3-amino-5-methylpyrazole" Journal of the Serbian Chemical Society, 74, no. 11 (2009):1259-1271,
https://doi.org/10.2298/JSC0911259J .
3
6
5

Crystal structure of dicholoro-(3,5-dimethyl-1H-pyrazole-1-carboxamidine-N,N )copper(II), Cu(C6H10N4)Cl-2

Jacimovic, Zeljko K.; Leovac, Vukadin M.; Francuski, Đorđe D.; Draskovic, Bojana M.; Bogdanović, Goran A.

(2009)

TY  - JOUR
AU  - Jacimovic, Zeljko K.
AU  - Leovac, Vukadin M.
AU  - Francuski, Đorđe D.
AU  - Draskovic, Bojana M.
AU  - Bogdanović, Goran A.
PY  - 2009
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3882
AB  - C6H10Cl2CuN4, monoclinic, P2(1)/n (no. 14), a = 7.316(2) angstrom b = 16.002(2) angstrom, c = 9.202(6) angstrom, beta = 113.15 (2)degrees, V = 990.6 angstrom(3), Z = 4, R-gt(F) = 0.054, wR(ref)(F-2) = 0.125, T = 293 K.
T2  - Zeitschrift fur Kristallographie = New Crystal Structures
T1  - Crystal structure of dicholoro-(3,5-dimethyl-1H-pyrazole-1-carboxamidine-N,N )copper(II), Cu(C6H10N4)Cl-2
VL  - 224
IS  - 4
SP  - 569
EP  - 570
DO  - 10.1524/ncrs.2009.0249
ER  - 
@article{
author = "Jacimovic, Zeljko K. and Leovac, Vukadin M. and Francuski, Đorđe D. and Draskovic, Bojana M. and Bogdanović, Goran A.",
year = "2009",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3882",
abstract = "C6H10Cl2CuN4, monoclinic, P2(1)/n (no. 14), a = 7.316(2) angstrom b = 16.002(2) angstrom, c = 9.202(6) angstrom, beta = 113.15 (2)degrees, V = 990.6 angstrom(3), Z = 4, R-gt(F) = 0.054, wR(ref)(F-2) = 0.125, T = 293 K.",
journal = "Zeitschrift fur Kristallographie = New Crystal Structures",
title = "Crystal structure of dicholoro-(3,5-dimethyl-1H-pyrazole-1-carboxamidine-N,N )copper(II), Cu(C6H10N4)Cl-2",
volume = "224",
number = "4",
pages = "569-570",
doi = "10.1524/ncrs.2009.0249"
}
Jacimovic, Z. K., Leovac, V. M., Francuski, Đ. D., Draskovic, B. M.,& Bogdanović, G. A. (2009). Crystal structure of dicholoro-(3,5-dimethyl-1H-pyrazole-1-carboxamidine-N,N )copper(II), Cu(C6H10N4)Cl-2.
Zeitschrift fur Kristallographie = New Crystal Structures, 224(4), 569-570.
https://doi.org/10.1524/ncrs.2009.0249
Jacimovic ZK, Leovac VM, Francuski ĐD, Draskovic BM, Bogdanović GA. Crystal structure of dicholoro-(3,5-dimethyl-1H-pyrazole-1-carboxamidine-N,N )copper(II), Cu(C6H10N4)Cl-2. Zeitschrift fur Kristallographie = New Crystal Structures. 2009;224(4):569-570
Jacimovic Zeljko K., Leovac Vukadin M., Francuski Đorđe D., Draskovic Bojana M., Bogdanović Goran A., "Crystal structure of dicholoro-(3,5-dimethyl-1H-pyrazole-1-carboxamidine-N,N )copper(II), Cu(C6H10N4)Cl-2" Zeitschrift fur Kristallographie = New Crystal Structures, 224, no. 4 (2009):569-570,
https://doi.org/10.1524/ncrs.2009.0249 .
1
1

Different intermolecular interactions in azido[2-(diphenylphosphino)benzaldehyde semicarbazonato-kappa P-2,N-1,O]nickel(II)

Novaković, Slađana B.; Bogdanović, Goran A.; Brceski, Ilija D.; Leovac, Vukadin M.

(2009)

TY  - JOUR
AU  - Novaković, Slađana B.
AU  - Bogdanović, Goran A.
AU  - Brceski, Ilija D.
AU  - Leovac, Vukadin M.
PY  - 2009
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3754
AB  - The title compound, [Ni(C20H17N3OP)(N-3)], is the first complex with a semicarbazide-based ligand having a P atom as one of the donors. The influence of the P atom on the deformation of the coordination geometry of the Ni-II ion is evident but less expressed than in the cases of complexes with analogous seleno-and thiosemicarbazide ligands. The torsion angles involving the two bonds formed by the P atom within the six-membered chelate ring have the largest values [C-P-Ni-N = 24.3 (2)degrees and C-C-P-Ni = -24.2 (4)degrees], suggesting that the P atom considerably influences the conformation of the ring. Two types of N-H center dot center dot center dot N hydrogen bond connect the complex units into chains.
T2  - Acta Crystallographica. Section C: Crystal Structure Communications
T1  - Different intermolecular interactions in azido[2-(diphenylphosphino)benzaldehyde semicarbazonato-kappa P-2,N-1,O]nickel(II)
VL  - 65
SP  - M263
EP  - M265
DO  - 10.1107/S0108270109021970
ER  - 
@article{
author = "Novaković, Slađana B. and Bogdanović, Goran A. and Brceski, Ilija D. and Leovac, Vukadin M.",
year = "2009",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3754",
abstract = "The title compound, [Ni(C20H17N3OP)(N-3)], is the first complex with a semicarbazide-based ligand having a P atom as one of the donors. The influence of the P atom on the deformation of the coordination geometry of the Ni-II ion is evident but less expressed than in the cases of complexes with analogous seleno-and thiosemicarbazide ligands. The torsion angles involving the two bonds formed by the P atom within the six-membered chelate ring have the largest values [C-P-Ni-N = 24.3 (2)degrees and C-C-P-Ni = -24.2 (4)degrees], suggesting that the P atom considerably influences the conformation of the ring. Two types of N-H center dot center dot center dot N hydrogen bond connect the complex units into chains.",
journal = "Acta Crystallographica. Section C: Crystal Structure Communications",
title = "Different intermolecular interactions in azido[2-(diphenylphosphino)benzaldehyde semicarbazonato-kappa P-2,N-1,O]nickel(II)",
volume = "65",
pages = "M263-M265",
doi = "10.1107/S0108270109021970"
}
Novaković, S. B., Bogdanović, G. A., Brceski, I. D.,& Leovac, V. M. (2009). Different intermolecular interactions in azido[2-(diphenylphosphino)benzaldehyde semicarbazonato-kappa P-2,N-1,O]nickel(II).
Acta Crystallographica. Section C: Crystal Structure Communications, 65, M263-M265.
https://doi.org/10.1107/S0108270109021970
Novaković SB, Bogdanović GA, Brceski ID, Leovac VM. Different intermolecular interactions in azido[2-(diphenylphosphino)benzaldehyde semicarbazonato-kappa P-2,N-1,O]nickel(II). Acta Crystallographica. Section C: Crystal Structure Communications. 2009;65:M263-M265
Novaković Slađana B., Bogdanović Goran A., Brceski Ilija D., Leovac Vukadin M., "Different intermolecular interactions in azido[2-(diphenylphosphino)benzaldehyde semicarbazonato-kappa P-2,N-1,O]nickel(II)" Acta Crystallographica. Section C: Crystal Structure Communications, 65 (2009):M263-M265,
https://doi.org/10.1107/S0108270109021970 .
11
12
12

{4-[(Carbamimidoylhydrazono)methyl-kappa N-2(1),N-4]-5-hydroxymethyl-2-methylpyridinium-3-olate-kappa O}(methanol-kappa O)copper(II) dinitrate

Leovac, Vukadin M.; Vojinović-Ješić, Ljiljana S.; Cesljevic, Valerija I.; Novaković, Slađana B.; Bogdanović, Goran A.

(2009)

TY  - JOUR
AU  - Leovac, Vukadin M.
AU  - Vojinović-Ješić, Ljiljana S.
AU  - Cesljevic, Valerija I.
AU  - Novaković, Slađana B.
AU  - Bogdanović, Goran A.
PY  - 2009
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3780
AB  - The title compound, [Cu(C9H13N5O2)(CH4O)](NO3)(2), consists of square-planar cationic complex units where the Cu-II centre is coordinated by an N, N, O-tridentate pyridoxal aminoguanidine Schiff base adduct and a methanol molecule. The tridentate ligand is a zwitterion exhibiting an almost planar conformation. The dihedral angles between the mean planes of the pyridoxal ring and the six-and five-membered chelate rings are all less than 2.0 degrees. The charge on the complex cation is neutralized by two nitrate counter-ions. Extensive N -H center dot center dot center dot O and C -H center dot center dot center dot O hydrogen bonding connects these ionic species and leads to the formation of layers. The pyridoxal hydroxy groups are the only fragments that deviate significantly from the flat layer structure; these groups are involved in O-H center dot center dot center dot O hydrogen bonding, connecting the layers into a three-dimensional crystal structure.
T2  - Acta Crystallographica. Section C: Crystal Structure Communications
T1  - {4-[(Carbamimidoylhydrazono)methyl-kappa N-2(1),N-4]-5-hydroxymethyl-2-methylpyridinium-3-olate-kappa O}(methanol-kappa O)copper(II) dinitrate
VL  - 65
SP  - M337
EP  - M339
DO  - 10.1107/S0108270109029023
ER  - 
@article{
author = "Leovac, Vukadin M. and Vojinović-Ješić, Ljiljana S. and Cesljevic, Valerija I. and Novaković, Slađana B. and Bogdanović, Goran A.",
year = "2009",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3780",
abstract = "The title compound, [Cu(C9H13N5O2)(CH4O)](NO3)(2), consists of square-planar cationic complex units where the Cu-II centre is coordinated by an N, N, O-tridentate pyridoxal aminoguanidine Schiff base adduct and a methanol molecule. The tridentate ligand is a zwitterion exhibiting an almost planar conformation. The dihedral angles between the mean planes of the pyridoxal ring and the six-and five-membered chelate rings are all less than 2.0 degrees. The charge on the complex cation is neutralized by two nitrate counter-ions. Extensive N -H center dot center dot center dot O and C -H center dot center dot center dot O hydrogen bonding connects these ionic species and leads to the formation of layers. The pyridoxal hydroxy groups are the only fragments that deviate significantly from the flat layer structure; these groups are involved in O-H center dot center dot center dot O hydrogen bonding, connecting the layers into a three-dimensional crystal structure.",
journal = "Acta Crystallographica. Section C: Crystal Structure Communications",
title = "{4-[(Carbamimidoylhydrazono)methyl-kappa N-2(1),N-4]-5-hydroxymethyl-2-methylpyridinium-3-olate-kappa O}(methanol-kappa O)copper(II) dinitrate",
volume = "65",
pages = "M337-M339",
doi = "10.1107/S0108270109029023"
}
Leovac, V. M., Vojinović-Ješić, L. S., Cesljevic, V. I., Novaković, S. B.,& Bogdanović, G. A. (2009). {4-[(Carbamimidoylhydrazono)methyl-kappa N-2(1),N-4]-5-hydroxymethyl-2-methylpyridinium-3-olate-kappa O}(methanol-kappa O)copper(II) dinitrate.
Acta Crystallographica. Section C: Crystal Structure Communications, 65, M337-M339.
https://doi.org/10.1107/S0108270109029023
Leovac VM, Vojinović-Ješić LS, Cesljevic VI, Novaković SB, Bogdanović GA. {4-[(Carbamimidoylhydrazono)methyl-kappa N-2(1),N-4]-5-hydroxymethyl-2-methylpyridinium-3-olate-kappa O}(methanol-kappa O)copper(II) dinitrate. Acta Crystallographica. Section C: Crystal Structure Communications. 2009;65:M337-M339
Leovac Vukadin M., Vojinović-Ješić Ljiljana S., Cesljevic Valerija I., Novaković Slađana B., Bogdanović Goran A., "{4-[(Carbamimidoylhydrazono)methyl-kappa N-2(1),N-4]-5-hydroxymethyl-2-methylpyridinium-3-olate-kappa O}(methanol-kappa O)copper(II) dinitrate" Acta Crystallographica. Section C: Crystal Structure Communications, 65 (2009):M337-M339,
https://doi.org/10.1107/S0108270109029023 .
4
11
11

Cobalt(II) complexes with disubstituted 3-aminopyrazole derivative: Mononuclear Co(II) complex with in situ prepared formamidine ligand

Leovac, Vukadin M.; Tomić, Zoran D.; Kovacs, Attila; Joksović, Milan D.; Jovanovic, Ljijana S.; Szecsenyi, Katalin Meszaros

(2008)

TY  - JOUR
AU  - Leovac, Vukadin M.
AU  - Tomić, Zoran D.
AU  - Kovacs, Attila
AU  - Joksović, Milan D.
AU  - Jovanovic, Ljijana S.
AU  - Szecsenyi, Katalin Meszaros
PY  - 2008
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3352
AB  - In the reaction of Co(NO3)(2) center dot 6H(2)O with 4-acetyl-3-amino-5-methylpyrazole (aamp) two octahedral Co(II) complexes, [Co(aamp)2(H2O)(4)](NO3)(2), 1, and [Co(ampf)(MeOH)(2)NO3]NO3 (ampf= N,N-bis(4-acetyl-5-metliylpyrazole-3-yl)formamidine), 2, were obtained, depending on the reaction conditions. The presence of water in the reaction system leads to incorporation of water molecules into the crystal lattice and I was formed. In all anhydrous environment, due to addition of CH(OEt)3, the fusion of two aamp) was induced through their NH2-groups, incorporating the methine group of CH(OEt)(3). As a result, complex 2, containing an adenino-mimetic NNO pharmacophore ligand, was obtained. The crystal and molecular structure of both compounds was determined. The coordination of aamp in I was achieved through N2 of the pyrazole ring. On the contrary, in 2, an unusual coordination mode of pyrazole is found: one of the pyrazole moieties, due to steric hindrance, coordinates through the oxygen atom of the acetyl group instead of N2. The complexes were characterized by elemental analysis and electronic spectra. For 2 a comprehensive IR spectral analysis is given. The metalligand interactions in 2 are analyzed by quantum chemical computations. The desolvation mechanism of both compounds is discussed in detail. (c) 2007 Elsevier B.V. All rights reserved.
T2  - Journal of Organometallic Chemistry
T1  - Cobalt(II) complexes with disubstituted 3-aminopyrazole derivative: Mononuclear Co(II) complex with in situ prepared formamidine ligand
VL  - 693
IS  - 1
SP  - 77
EP  - 86
DO  - 10.1016/j.jorganchem.2007.10.018
ER  - 
@article{
author = "Leovac, Vukadin M. and Tomić, Zoran D. and Kovacs, Attila and Joksović, Milan D. and Jovanovic, Ljijana S. and Szecsenyi, Katalin Meszaros",
year = "2008",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3352",
abstract = "In the reaction of Co(NO3)(2) center dot 6H(2)O with 4-acetyl-3-amino-5-methylpyrazole (aamp) two octahedral Co(II) complexes, [Co(aamp)2(H2O)(4)](NO3)(2), 1, and [Co(ampf)(MeOH)(2)NO3]NO3 (ampf= N,N-bis(4-acetyl-5-metliylpyrazole-3-yl)formamidine), 2, were obtained, depending on the reaction conditions. The presence of water in the reaction system leads to incorporation of water molecules into the crystal lattice and I was formed. In all anhydrous environment, due to addition of CH(OEt)3, the fusion of two aamp) was induced through their NH2-groups, incorporating the methine group of CH(OEt)(3). As a result, complex 2, containing an adenino-mimetic NNO pharmacophore ligand, was obtained. The crystal and molecular structure of both compounds was determined. The coordination of aamp in I was achieved through N2 of the pyrazole ring. On the contrary, in 2, an unusual coordination mode of pyrazole is found: one of the pyrazole moieties, due to steric hindrance, coordinates through the oxygen atom of the acetyl group instead of N2. The complexes were characterized by elemental analysis and electronic spectra. For 2 a comprehensive IR spectral analysis is given. The metalligand interactions in 2 are analyzed by quantum chemical computations. The desolvation mechanism of both compounds is discussed in detail. (c) 2007 Elsevier B.V. All rights reserved.",
journal = "Journal of Organometallic Chemistry",
title = "Cobalt(II) complexes with disubstituted 3-aminopyrazole derivative: Mononuclear Co(II) complex with in situ prepared formamidine ligand",
volume = "693",
number = "1",
pages = "77-86",
doi = "10.1016/j.jorganchem.2007.10.018"
}
Leovac, V. M., Tomić, Z. D., Kovacs, A., Joksović, M. D., Jovanovic, L. S.,& Szecsenyi, K. M. (2008). Cobalt(II) complexes with disubstituted 3-aminopyrazole derivative: Mononuclear Co(II) complex with in situ prepared formamidine ligand.
Journal of Organometallic Chemistry, 693(1), 77-86.
https://doi.org/10.1016/j.jorganchem.2007.10.018
Leovac VM, Tomić ZD, Kovacs A, Joksović MD, Jovanovic LS, Szecsenyi KM. Cobalt(II) complexes with disubstituted 3-aminopyrazole derivative: Mononuclear Co(II) complex with in situ prepared formamidine ligand. Journal of Organometallic Chemistry. 2008;693(1):77-86
Leovac Vukadin M., Tomić Zoran D., Kovacs Attila, Joksović Milan D., Jovanovic Ljijana S., Szecsenyi Katalin Meszaros, "Cobalt(II) complexes with disubstituted 3-aminopyrazole derivative: Mononuclear Co(II) complex with in situ prepared formamidine ligand" Journal of Organometallic Chemistry, 693, no. 1 (2008):77-86,
https://doi.org/10.1016/j.jorganchem.2007.10.018 .
12
11
11

Transition metal complexes with Girard reagent-based ligands. Part IV. Synthesis and characterization of pyridoxilidene Girard-T hydrazone complexes. Crystal structure of the copper(II) complex

Vojinović-Ješić, Ljiljana S.; Bogdanović, Goran A.; Leovac, Vukadin M.; Cesljevic, Valerija I.; Jovanovic, Ljiljana S.

(2008)

TY  - JOUR
AU  - Vojinović-Ješić, Ljiljana S.
AU  - Bogdanović, Goran A.
AU  - Leovac, Vukadin M.
AU  - Cesljevic, Valerija I.
AU  - Jovanovic, Ljiljana S.
PY  - 2008
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3539
AB  - The monoligand complexes of the formula M(HPLGT)(NCS)(2) (M = Cu(II), Zn(II)) in which the ligand tridentate ONO pyridoxilidene Girard-T hydrazone, [H(3)PLGT]Cl(2) center dot 2H(2)O, was coordinated in neutral doubly deprotonated form were synthesized. Also, the first complexes with the ligand coordinated in triply deprotonated monoanionic form of the formula [Cu(PLGT)N(3)] and [Co(PLGT)(NO(2))(2)NH(3)] center dot 3H(2)O are reported. The single crystal X-ray analysis of [Cu(HPLGT)(NCS)(2)] showed that Cu(II) is placed in a square-pyramidal surrounding consisting of one tridentate Schiff base and one NCS group in the basal plane and the other NCS group in the apical position. Intermolecular hydrogen bonds leading to centrosymmetrical dimerization of these complexes were discussed. In the reaction of Girard-T and Hacac in the presence of CuCl(2), a mixture of single crystal complexes of the composition [Cu(3,5-Me(2)pz)(2)Cl(2)](2) and [Cu(acac)(2)] center dot 2[Cu(3,5-Me(2)pz)(2)Cl(2)] was obtained and X-ray analysis of the latter one was reported.
T2  - Structural Chemistry
T1  - Transition metal complexes with Girard reagent-based ligands. Part IV. Synthesis and characterization of pyridoxilidene Girard-T hydrazone complexes. Crystal structure of the copper(II) complex
VL  - 19
IS  - 5
SP  - 807
EP  - 815
DO  - 10.1007/s11224-008-9368-x
ER  - 
@article{
author = "Vojinović-Ješić, Ljiljana S. and Bogdanović, Goran A. and Leovac, Vukadin M. and Cesljevic, Valerija I. and Jovanovic, Ljiljana S.",
year = "2008",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3539",
abstract = "The monoligand complexes of the formula M(HPLGT)(NCS)(2) (M = Cu(II), Zn(II)) in which the ligand tridentate ONO pyridoxilidene Girard-T hydrazone, [H(3)PLGT]Cl(2) center dot 2H(2)O, was coordinated in neutral doubly deprotonated form were synthesized. Also, the first complexes with the ligand coordinated in triply deprotonated monoanionic form of the formula [Cu(PLGT)N(3)] and [Co(PLGT)(NO(2))(2)NH(3)] center dot 3H(2)O are reported. The single crystal X-ray analysis of [Cu(HPLGT)(NCS)(2)] showed that Cu(II) is placed in a square-pyramidal surrounding consisting of one tridentate Schiff base and one NCS group in the basal plane and the other NCS group in the apical position. Intermolecular hydrogen bonds leading to centrosymmetrical dimerization of these complexes were discussed. In the reaction of Girard-T and Hacac in the presence of CuCl(2), a mixture of single crystal complexes of the composition [Cu(3,5-Me(2)pz)(2)Cl(2)](2) and [Cu(acac)(2)] center dot 2[Cu(3,5-Me(2)pz)(2)Cl(2)] was obtained and X-ray analysis of the latter one was reported.",
journal = "Structural Chemistry",
title = "Transition metal complexes with Girard reagent-based ligands. Part IV. Synthesis and characterization of pyridoxilidene Girard-T hydrazone complexes. Crystal structure of the copper(II) complex",
volume = "19",
number = "5",
pages = "807-815",
doi = "10.1007/s11224-008-9368-x"
}
Vojinović-Ješić, L. S., Bogdanović, G. A., Leovac, V. M., Cesljevic, V. I.,& Jovanovic, L. S. (2008). Transition metal complexes with Girard reagent-based ligands. Part IV. Synthesis and characterization of pyridoxilidene Girard-T hydrazone complexes. Crystal structure of the copper(II) complex.
Structural Chemistry, 19(5), 807-815.
https://doi.org/10.1007/s11224-008-9368-x
Vojinović-Ješić LS, Bogdanović GA, Leovac VM, Cesljevic VI, Jovanovic LS. Transition metal complexes with Girard reagent-based ligands. Part IV. Synthesis and characterization of pyridoxilidene Girard-T hydrazone complexes. Crystal structure of the copper(II) complex. Structural Chemistry. 2008;19(5):807-815
Vojinović-Ješić Ljiljana S., Bogdanović Goran A., Leovac Vukadin M., Cesljevic Valerija I., Jovanovic Ljiljana S., "Transition metal complexes with Girard reagent-based ligands. Part IV. Synthesis and characterization of pyridoxilidene Girard-T hydrazone complexes. Crystal structure of the copper(II) complex" Structural Chemistry, 19, no. 5 (2008):807-815,
https://doi.org/10.1007/s11224-008-9368-x .
6
7
7

Comparison of structural features of three new cis-dioxomolybdenum(VI) complexes with 2-hydroxy-1-naphthaldehyde-S-methylisothiosemicarbazone: Possible role of intermolecular interactions on the geometry of the cis-MoO(2) unit

Tomić, Zoran D.; Kapor, Agnes; Zmiric, Aleksandra; Leovac, Vukadin M.; Zobel, Dieter; Zaric, Snezana D.

(2007)

TY  - JOUR
AU  - Tomić, Zoran D.
AU  - Kapor, Agnes
AU  - Zmiric, Aleksandra
AU  - Leovac, Vukadin M.
AU  - Zobel, Dieter
AU  - Zaric, Snezana D.
PY  - 2007
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3194
AB  - Three closely related [MoO(2)(L)(ML)] complexes, where L is the 2-hydroxy-1-naphthaldehyde-S-methylisothiosemicarbazone ligand, and ML is EtOH (I), Py (II) and DMSO (III), were synthesized, characterized by NMR and IR spectra, and their X-ray crystal structures were determined. The crystal structure properties of these three closely related complexes were compared. Two cis-Mo-O bond lengths were almost the same in the crystal structure of complexes II and III, while in complex I a significant difference between the two cis-Mo-O bond lengths was observed. At the same time, the geometry of L ligand in complex I is different, compared to II and III. DFT calculations on the isolated molecule I, as well as geometrical analysis of the complexes indicate that intramolecular interactions are not responsible for these structural differences. On the other hand, the pattern of intermolecular contacts in the crystal structure of I differs from those observed in II and III. Analyses indicate that differences in cis-Mo-O bond lengths and in the geometry of ligand L could be related to intermolecular interactions. These results suggest the possibility that in enzymes oxotransferases or in their model systems, the Mo-O bond length could be designed by the interactions of chelate ligands with the surroundings. (C) 2006 Elsevier B.V. All rights reserved.
T2  - Inorganica Chimica Acta
T1  - Comparison of structural features of three new cis-dioxomolybdenum(VI) complexes with 2-hydroxy-1-naphthaldehyde-S-methylisothiosemicarbazone: Possible role of intermolecular interactions on the geometry of the cis-MoO(2) unit
VL  - 360
IS  - 7
SP  - 2197
EP  - 2206
DO  - 10.1016/j.ica.2006.10.026
ER  - 
@article{
author = "Tomić, Zoran D. and Kapor, Agnes and Zmiric, Aleksandra and Leovac, Vukadin M. and Zobel, Dieter and Zaric, Snezana D.",
year = "2007",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3194",
abstract = "Three closely related [MoO(2)(L)(ML)] complexes, where L is the 2-hydroxy-1-naphthaldehyde-S-methylisothiosemicarbazone ligand, and ML is EtOH (I), Py (II) and DMSO (III), were synthesized, characterized by NMR and IR spectra, and their X-ray crystal structures were determined. The crystal structure properties of these three closely related complexes were compared. Two cis-Mo-O bond lengths were almost the same in the crystal structure of complexes II and III, while in complex I a significant difference between the two cis-Mo-O bond lengths was observed. At the same time, the geometry of L ligand in complex I is different, compared to II and III. DFT calculations on the isolated molecule I, as well as geometrical analysis of the complexes indicate that intramolecular interactions are not responsible for these structural differences. On the other hand, the pattern of intermolecular contacts in the crystal structure of I differs from those observed in II and III. Analyses indicate that differences in cis-Mo-O bond lengths and in the geometry of ligand L could be related to intermolecular interactions. These results suggest the possibility that in enzymes oxotransferases or in their model systems, the Mo-O bond length could be designed by the interactions of chelate ligands with the surroundings. (C) 2006 Elsevier B.V. All rights reserved.",
journal = "Inorganica Chimica Acta",
title = "Comparison of structural features of three new cis-dioxomolybdenum(VI) complexes with 2-hydroxy-1-naphthaldehyde-S-methylisothiosemicarbazone: Possible role of intermolecular interactions on the geometry of the cis-MoO(2) unit",
volume = "360",
number = "7",
pages = "2197-2206",
doi = "10.1016/j.ica.2006.10.026"
}
Tomić, Z. D., Kapor, A., Zmiric, A., Leovac, V. M., Zobel, D.,& Zaric, S. D. (2007). Comparison of structural features of three new cis-dioxomolybdenum(VI) complexes with 2-hydroxy-1-naphthaldehyde-S-methylisothiosemicarbazone: Possible role of intermolecular interactions on the geometry of the cis-MoO(2) unit.
Inorganica Chimica Acta, 360(7), 2197-2206.
https://doi.org/10.1016/j.ica.2006.10.026
Tomić ZD, Kapor A, Zmiric A, Leovac VM, Zobel D, Zaric SD. Comparison of structural features of three new cis-dioxomolybdenum(VI) complexes with 2-hydroxy-1-naphthaldehyde-S-methylisothiosemicarbazone: Possible role of intermolecular interactions on the geometry of the cis-MoO(2) unit. Inorganica Chimica Acta. 2007;360(7):2197-2206
Tomić Zoran D., Kapor Agnes, Zmiric Aleksandra, Leovac Vukadin M., Zobel Dieter, Zaric Snezana D., "Comparison of structural features of three new cis-dioxomolybdenum(VI) complexes with 2-hydroxy-1-naphthaldehyde-S-methylisothiosemicarbazone: Possible role of intermolecular interactions on the geometry of the cis-MoO(2) unit" Inorganica Chimica Acta, 360, no. 7 (2007):2197-2206,
https://doi.org/10.1016/j.ica.2006.10.026 .
22
25
25

Synthesis under self-controlled reaction conditions: Reaction of tetraamminezinc(II) chloride with 3,5-dimethyl-1-thiocarboxamide pyrazole

Kovacs, Attila; Meszaros Szecsenyi, Katalin; Leovac, Vukadin M.; Tomić, Zoran D.; Pokol, Gyoergy

(2007)

TY  - JOUR
AU  - Kovacs, Attila
AU  - Meszaros Szecsenyi, Katalin
AU  - Leovac, Vukadin M.
AU  - Tomić, Zoran D.
AU  - Pokol, Gyoergy
PY  - 2007
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3200
AB  - The trinuclear [Zn-3(Hdmpz)(2)(dmpz)(4)(NCS)(2)] complex (Hdmpz: 3,5-dimethylpyrazole) has been synthesized by the reaction of tetraamminezinc(II) chloride with 3,5-dimethyl-1-thiocarboxamidepyrazole. The ammonia evolving gradually from [Zn(NH3)(4)]Cl-2 ensured a mild gradually increasing basic pH during the synthesis which caused a cleavage of the 1-N-substituent. Moreover, the changing pH controlled the pyrazolate anion-neutral ligand equilibrium, and in this way the formation of the precipitate complex. The structure of the complex was investigated by X-ray diffraction and quantum chemical computations. The complex was characterized in detail by FT-IR-spectroscopy and thermal analysis. The bonding interactions between Zn2+ and the ligands were analysed on the basis of the computed data. (c) 2007 Elsevier B.V. All rights reserved.
T2  - Journal of Organometallic Chemistry
T1  - Synthesis under self-controlled reaction conditions: Reaction of tetraamminezinc(II) chloride with 3,5-dimethyl-1-thiocarboxamide pyrazole
VL  - 692
IS  - 12
SP  - 2582
EP  - 2592
DO  - 10.1016/j.jorganchem.2007.03.003
ER  - 
@article{
author = "Kovacs, Attila and Meszaros Szecsenyi, Katalin and Leovac, Vukadin M. and Tomić, Zoran D. and Pokol, Gyoergy",
year = "2007",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3200",
abstract = "The trinuclear [Zn-3(Hdmpz)(2)(dmpz)(4)(NCS)(2)] complex (Hdmpz: 3,5-dimethylpyrazole) has been synthesized by the reaction of tetraamminezinc(II) chloride with 3,5-dimethyl-1-thiocarboxamidepyrazole. The ammonia evolving gradually from [Zn(NH3)(4)]Cl-2 ensured a mild gradually increasing basic pH during the synthesis which caused a cleavage of the 1-N-substituent. Moreover, the changing pH controlled the pyrazolate anion-neutral ligand equilibrium, and in this way the formation of the precipitate complex. The structure of the complex was investigated by X-ray diffraction and quantum chemical computations. The complex was characterized in detail by FT-IR-spectroscopy and thermal analysis. The bonding interactions between Zn2+ and the ligands were analysed on the basis of the computed data. (c) 2007 Elsevier B.V. All rights reserved.",
journal = "Journal of Organometallic Chemistry",
title = "Synthesis under self-controlled reaction conditions: Reaction of tetraamminezinc(II) chloride with 3,5-dimethyl-1-thiocarboxamide pyrazole",
volume = "692",
number = "12",
pages = "2582-2592",
doi = "10.1016/j.jorganchem.2007.03.003"
}
Kovacs, A., Meszaros Szecsenyi, K., Leovac, V. M., Tomić, Z. D.,& Pokol, G. (2007). Synthesis under self-controlled reaction conditions: Reaction of tetraamminezinc(II) chloride with 3,5-dimethyl-1-thiocarboxamide pyrazole.
Journal of Organometallic Chemistry, 692(12), 2582-2592.
https://doi.org/10.1016/j.jorganchem.2007.03.003
Kovacs A, Meszaros Szecsenyi K, Leovac VM, Tomić ZD, Pokol G. Synthesis under self-controlled reaction conditions: Reaction of tetraamminezinc(II) chloride with 3,5-dimethyl-1-thiocarboxamide pyrazole. Journal of Organometallic Chemistry. 2007;692(12):2582-2592
Kovacs Attila, Meszaros Szecsenyi Katalin, Leovac Vukadin M., Tomić Zoran D., Pokol Gyoergy, "Synthesis under self-controlled reaction conditions: Reaction of tetraamminezinc(II) chloride with 3,5-dimethyl-1-thiocarboxamide pyrazole" Journal of Organometallic Chemistry, 692, no. 12 (2007):2582-2592,
https://doi.org/10.1016/j.jorganchem.2007.03.003 .
9
11
12

Crystal structure of hexakis(mu(2)-chloro)-mu(4)-oxo-tetrakis((3,5-dimethylpyrazole)copper(II)) ethanol tetrasolvate,Cu4OCl6(C5H8N2)(4)center dot 4C(2)H(5)OH

Jacimovic, Zeljko K.; Leovac, Vukadin M.; Tomić, Zoran D.

(2007)

TY  - JOUR
AU  - Jacimovic, Zeljko K.
AU  - Leovac, Vukadin M.
AU  - Tomić, Zoran D.
PY  - 2007
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3341
AB  - C28H56Cl6Cu4N8O5, triclinic, P (1) over bar (no. 2), a = 8.863(1) angstrom, b = 13.939(8) angstrom, c = 17.06(1) angstrom, alpha = 81.67(5)degrees, beta = 85.68(3)degrees, gamma = 84.91(3)degrees, V = 2073.0 angstrom(3), Z = 2, R-gt(F) = 0.080, wR(ref)(F-2) = 0.194, T = 293 K.
T2  - Zeitschrift fur Kristallographie = New Crystal Structures
T1  - Crystal structure of hexakis(mu(2)-chloro)-mu(4)-oxo-tetrakis((3,5-dimethylpyrazole)copper(II)) ethanol tetrasolvate,Cu4OCl6(C5H8N2)(4)center dot 4C(2)H(5)OH
VL  - 222
IS  - 3
SP  - 246
EP  - 248
DO  - 10.1524/ncrs.2007.0103
ER  - 
@article{
author = "Jacimovic, Zeljko K. and Leovac, Vukadin M. and Tomić, Zoran D.",
year = "2007",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3341",
abstract = "C28H56Cl6Cu4N8O5, triclinic, P (1) over bar (no. 2), a = 8.863(1) angstrom, b = 13.939(8) angstrom, c = 17.06(1) angstrom, alpha = 81.67(5)degrees, beta = 85.68(3)degrees, gamma = 84.91(3)degrees, V = 2073.0 angstrom(3), Z = 2, R-gt(F) = 0.080, wR(ref)(F-2) = 0.194, T = 293 K.",
journal = "Zeitschrift fur Kristallographie = New Crystal Structures",
title = "Crystal structure of hexakis(mu(2)-chloro)-mu(4)-oxo-tetrakis((3,5-dimethylpyrazole)copper(II)) ethanol tetrasolvate,Cu4OCl6(C5H8N2)(4)center dot 4C(2)H(5)OH",
volume = "222",
number = "3",
pages = "246-248",
doi = "10.1524/ncrs.2007.0103"
}
Jacimovic, Z. K., Leovac, V. M.,& Tomić, Z. D. (2007). Crystal structure of hexakis(mu(2)-chloro)-mu(4)-oxo-tetrakis((3,5-dimethylpyrazole)copper(II)) ethanol tetrasolvate,Cu4OCl6(C5H8N2)(4)center dot 4C(2)H(5)OH.
Zeitschrift fur Kristallographie = New Crystal Structures, 222(3), 246-248.
https://doi.org/10.1524/ncrs.2007.0103
Jacimovic ZK, Leovac VM, Tomić ZD. Crystal structure of hexakis(mu(2)-chloro)-mu(4)-oxo-tetrakis((3,5-dimethylpyrazole)copper(II)) ethanol tetrasolvate,Cu4OCl6(C5H8N2)(4)center dot 4C(2)H(5)OH. Zeitschrift fur Kristallographie = New Crystal Structures. 2007;222(3):246-248
Jacimovic Zeljko K., Leovac Vukadin M., Tomić Zoran D., "Crystal structure of hexakis(mu(2)-chloro)-mu(4)-oxo-tetrakis((3,5-dimethylpyrazole)copper(II)) ethanol tetrasolvate,Cu4OCl6(C5H8N2)(4)center dot 4C(2)H(5)OH" Zeitschrift fur Kristallographie = New Crystal Structures, 222, no. 3 (2007):246-248,
https://doi.org/10.1524/ncrs.2007.0103 .
3
7
7

Transition metal complexes with pyrazole based ligands. Part 27. Structural and thermal characterization of cobalt(II) halide and pseudohalide complexes with 4-acetyl-3-amino-5-methylpyrazole

Leovac, Vukadin M.; Tomić, Zoran D.; Szecsenyi, Katalin Meszaros; Jovanovic, Ljiljana S.; Joksović, Milan D.

(2007)

TY  - JOUR
AU  - Leovac, Vukadin M.
AU  - Tomić, Zoran D.
AU  - Szecsenyi, Katalin Meszaros
AU  - Jovanovic, Ljiljana S.
AU  - Joksović, Milan D.
PY  - 2007
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3344
AB  - The crystal and molecular structures of four tetrahedral structurally similar [Co(aamp)(2)X-2] complexes (aamp = 4-acetyl-3-amino-5-methylpyrazole, X = Cl, Br, I and NCS) were determined by X-ray diffraction analysis and are discussed in detail. It was found that the different capacity of the ligand X (NCS vs. Cl, Br, I) for the formation of non-bonding contacts influence the mode of molecular association in the solid state. The complexes were characterized by UV-Vis spectroscopy. The first step of the thermal decomposition of the compounds was checked and is discussed in the view of the IR spectrum of the intermediate isolated from [Co(aamp)(2)Br-2] by the quasi-isothermal technique.
T2  - Journal of the Serbian Chemical Society
T1  - Transition metal complexes with pyrazole based ligands. Part 27. Structural and thermal characterization of cobalt(II) halide and pseudohalide complexes with 4-acetyl-3-amino-5-methylpyrazole
VL  - 72
IS  - 12
SP  - 1281
EP  - 1293
DO  - 10.2298/JSC0712281L
ER  - 
@article{
author = "Leovac, Vukadin M. and Tomić, Zoran D. and Szecsenyi, Katalin Meszaros and Jovanovic, Ljiljana S. and Joksović, Milan D.",
year = "2007",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3344",
abstract = "The crystal and molecular structures of four tetrahedral structurally similar [Co(aamp)(2)X-2] complexes (aamp = 4-acetyl-3-amino-5-methylpyrazole, X = Cl, Br, I and NCS) were determined by X-ray diffraction analysis and are discussed in detail. It was found that the different capacity of the ligand X (NCS vs. Cl, Br, I) for the formation of non-bonding contacts influence the mode of molecular association in the solid state. The complexes were characterized by UV-Vis spectroscopy. The first step of the thermal decomposition of the compounds was checked and is discussed in the view of the IR spectrum of the intermediate isolated from [Co(aamp)(2)Br-2] by the quasi-isothermal technique.",
journal = "Journal of the Serbian Chemical Society",
title = "Transition metal complexes with pyrazole based ligands. Part 27. Structural and thermal characterization of cobalt(II) halide and pseudohalide complexes with 4-acetyl-3-amino-5-methylpyrazole",
volume = "72",
number = "12",
pages = "1281-1293",
doi = "10.2298/JSC0712281L"
}
Leovac, V. M., Tomić, Z. D., Szecsenyi, K. M., Jovanovic, L. S.,& Joksović, M. D. (2007). Transition metal complexes with pyrazole based ligands. Part 27. Structural and thermal characterization of cobalt(II) halide and pseudohalide complexes with 4-acetyl-3-amino-5-methylpyrazole.
Journal of the Serbian Chemical Society, 72(12), 1281-1293.
https://doi.org/10.2298/JSC0712281L
Leovac VM, Tomić ZD, Szecsenyi KM, Jovanovic LS, Joksović MD. Transition metal complexes with pyrazole based ligands. Part 27. Structural and thermal characterization of cobalt(II) halide and pseudohalide complexes with 4-acetyl-3-amino-5-methylpyrazole. Journal of the Serbian Chemical Society. 2007;72(12):1281-1293
Leovac Vukadin M., Tomić Zoran D., Szecsenyi Katalin Meszaros, Jovanovic Ljiljana S., Joksović Milan D., "Transition metal complexes with pyrazole based ligands. Part 27. Structural and thermal characterization of cobalt(II) halide and pseudohalide complexes with 4-acetyl-3-amino-5-methylpyrazole" Journal of the Serbian Chemical Society, 72, no. 12 (2007):1281-1293,
https://doi.org/10.2298/JSC0712281L .
3
5
5

Crystal structure of bis(mu(2)-thiocyanato)tetrakis(3,5-dimethyl-t(thiocarbamoy)pyrazole)dinickel(II) dichloride ethanol disolvate, [Ni(NCS)(2)(C6H6N3S)(4)] [Cl](2)center dot 2C(2)H(5)OH

Jacimovic, Zeljko K.; Radovic, Ana; Leovac, Vukadin M.; Tomić, Zoran D.; Radosavjević Evans, Ivana

(2007)

TY  - JOUR
AU  - Jacimovic, Zeljko K.
AU  - Radovic, Ana
AU  - Leovac, Vukadin M.
AU  - Tomić, Zoran D.
AU  - Radosavjević Evans, Ivana
PY  - 2007
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3397
AB  - C30H48Cl2N14Ni2O2S6, monoclinic, P12/c1 (no. 14), a = 12.0407(7) angstrom,k, b = 11.8861(6) angstrom, c = 15.7389(9) angstrom, beta = 93.904(1)degrees, V = 2247.3 angstrom(3) Z = 2, R-gt(F) = 0.032, wR(ref) f(F-2) = 0.069, T = 120.
T2  - Zeitschrift fur Kristallographie = New Crystal Structures
T1  - Crystal structure of bis(mu(2)-thiocyanato)tetrakis(3,5-dimethyl-t(thiocarbamoy)pyrazole)dinickel(II) dichloride ethanol disolvate, [Ni(NCS)(2)(C6H6N3S)(4)] [Cl](2)center dot 2C(2)H(5)OH
VL  - 222
IS  - 4
SP  - 430
EP  - 432
DO  - 10.1524/ncrs.2007.0182
ER  - 
@article{
author = "Jacimovic, Zeljko K. and Radovic, Ana and Leovac, Vukadin M. and Tomić, Zoran D. and Radosavjević Evans, Ivana",
year = "2007",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3397",
abstract = "C30H48Cl2N14Ni2O2S6, monoclinic, P12/c1 (no. 14), a = 12.0407(7) angstrom,k, b = 11.8861(6) angstrom, c = 15.7389(9) angstrom, beta = 93.904(1)degrees, V = 2247.3 angstrom(3) Z = 2, R-gt(F) = 0.032, wR(ref) f(F-2) = 0.069, T = 120.",
journal = "Zeitschrift fur Kristallographie = New Crystal Structures",
title = "Crystal structure of bis(mu(2)-thiocyanato)tetrakis(3,5-dimethyl-t(thiocarbamoy)pyrazole)dinickel(II) dichloride ethanol disolvate, [Ni(NCS)(2)(C6H6N3S)(4)] [Cl](2)center dot 2C(2)H(5)OH",
volume = "222",
number = "4",
pages = "430-432",
doi = "10.1524/ncrs.2007.0182"
}
Jacimovic, Z. K., Radovic, A., Leovac, V. M., Tomić, Z. D.,& Radosavjević Evans, I. (2007). Crystal structure of bis(mu(2)-thiocyanato)tetrakis(3,5-dimethyl-t(thiocarbamoy)pyrazole)dinickel(II) dichloride ethanol disolvate, [Ni(NCS)(2)(C6H6N3S)(4)] [Cl](2)center dot 2C(2)H(5)OH.
Zeitschrift fur Kristallographie = New Crystal Structures, 222(4), 430-432.
https://doi.org/10.1524/ncrs.2007.0182
Jacimovic ZK, Radovic A, Leovac VM, Tomić ZD, Radosavjević Evans I. Crystal structure of bis(mu(2)-thiocyanato)tetrakis(3,5-dimethyl-t(thiocarbamoy)pyrazole)dinickel(II) dichloride ethanol disolvate, [Ni(NCS)(2)(C6H6N3S)(4)] [Cl](2)center dot 2C(2)H(5)OH. Zeitschrift fur Kristallographie = New Crystal Structures. 2007;222(4):430-432
Jacimovic Zeljko K., Radovic Ana, Leovac Vukadin M., Tomić Zoran D., Radosavjević Evans Ivana, "Crystal structure of bis(mu(2)-thiocyanato)tetrakis(3,5-dimethyl-t(thiocarbamoy)pyrazole)dinickel(II) dichloride ethanol disolvate, [Ni(NCS)(2)(C6H6N3S)(4)] [Cl](2)center dot 2C(2)H(5)OH" Zeitschrift fur Kristallographie = New Crystal Structures, 222, no. 4 (2007):430-432,
https://doi.org/10.1524/ncrs.2007.0182 .
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Crystal structure of tris(pyridine)(salicylaldehyde semicarbazonato(2-))cobalt(III)-trichloropyridinecobaltate(II) at 293 and 120 K

Bogdanović, Goran A.; Leovac, Vukadin M.; Vojinović-Ješić, Ljiljana S.; Spasojević-de Bire, Anne

(2007)

TY  - JOUR
AU  - Bogdanović, Goran A.
AU  - Leovac, Vukadin M.
AU  - Vojinović-Ješić, Ljiljana S.
AU  - Spasojević-de Bire, Anne
PY  - 2007
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3160
AB  - The crystal structure of [Co-III(L)(py)(3)][(CoCl3)-Cl-II(py)] (H2L = salicylaldehyde. semicarbazone) was determined by X-ray analysis based oil two single crystal X-ray experiments performed at 120 K and 293 K. respectively. It was found that the pyridine ligand of the complex anion is disordered over two positions. The preferential position of this pyridine found at 120 K was explained in terms of the C-H...Cl intermolecular interaction between the tetrahedral [Co-II(py)Cl-3](-) anions. The mer-octahedral geometry of the cation in the presented crystal structure was compared with previously published structures of similar composition, [Co-III(L-I)(py)(3)](+)[(CoCl3)-Cl-II(py)]-.EtOH and [Co-III(L-I)(py)(3)]I-+(3)- (H2LI = salicylaldehyde S-methylisothiosemicarbazone). Although the tetrahedral [(CoCl3)-Cl-II(py)](-) anions possess the same charge, they i-mutually form different intermolecular interactions which can be realized either by C-H...Cl hydrogn bonds or by pi-pi interactions between the pyridine rings.
T2  - Journal of the Serbian Chemical Society
T1  - Crystal structure of tris(pyridine)(salicylaldehyde semicarbazonato(2-))cobalt(III)-trichloropyridinecobaltate(II) at 293 and 120 K
VL  - 72
IS  - 1
SP  - 63
EP  - 71
DO  - 10.2298/JSC0701063B
ER  - 
@article{
author = "Bogdanović, Goran A. and Leovac, Vukadin M. and Vojinović-Ješić, Ljiljana S. and Spasojević-de Bire, Anne",
year = "2007",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3160",
abstract = "The crystal structure of [Co-III(L)(py)(3)][(CoCl3)-Cl-II(py)] (H2L = salicylaldehyde. semicarbazone) was determined by X-ray analysis based oil two single crystal X-ray experiments performed at 120 K and 293 K. respectively. It was found that the pyridine ligand of the complex anion is disordered over two positions. The preferential position of this pyridine found at 120 K was explained in terms of the C-H...Cl intermolecular interaction between the tetrahedral [Co-II(py)Cl-3](-) anions. The mer-octahedral geometry of the cation in the presented crystal structure was compared with previously published structures of similar composition, [Co-III(L-I)(py)(3)](+)[(CoCl3)-Cl-II(py)]-.EtOH and [Co-III(L-I)(py)(3)]I-+(3)- (H2LI = salicylaldehyde S-methylisothiosemicarbazone). Although the tetrahedral [(CoCl3)-Cl-II(py)](-) anions possess the same charge, they i-mutually form different intermolecular interactions which can be realized either by C-H...Cl hydrogn bonds or by pi-pi interactions between the pyridine rings.",
journal = "Journal of the Serbian Chemical Society",
title = "Crystal structure of tris(pyridine)(salicylaldehyde semicarbazonato(2-))cobalt(III)-trichloropyridinecobaltate(II) at 293 and 120 K",
volume = "72",
number = "1",
pages = "63-71",
doi = "10.2298/JSC0701063B"
}
Bogdanović, G. A., Leovac, V. M., Vojinović-Ješić, L. S.,& Spasojević-de Bire, A. (2007). Crystal structure of tris(pyridine)(salicylaldehyde semicarbazonato(2-))cobalt(III)-trichloropyridinecobaltate(II) at 293 and 120 K.
Journal of the Serbian Chemical Society, 72(1), 63-71.
https://doi.org/10.2298/JSC0701063B
Bogdanović GA, Leovac VM, Vojinović-Ješić LS, Spasojević-de Bire A. Crystal structure of tris(pyridine)(salicylaldehyde semicarbazonato(2-))cobalt(III)-trichloropyridinecobaltate(II) at 293 and 120 K. Journal of the Serbian Chemical Society. 2007;72(1):63-71
Bogdanović Goran A., Leovac Vukadin M., Vojinović-Ješić Ljiljana S., Spasojević-de Bire Anne, "Crystal structure of tris(pyridine)(salicylaldehyde semicarbazonato(2-))cobalt(III)-trichloropyridinecobaltate(II) at 293 and 120 K" Journal of the Serbian Chemical Society, 72, no. 1 (2007):63-71,
https://doi.org/10.2298/JSC0701063B .
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Transition metal complexes with Girard reagent-based ligands. Part III. Synthesis and characterization of salicylaldehyde Girard-T hydrazone complexes. Crystal structure of ligand and two isostructural copper(II) complexes

Leovac, Vukadin M.; Bogdanović, Goran A.; Cesljevic, Valerija I.; Jovanovic, Ljiljana S.; Novaković, Slađana B.; Vojinović-Ješić, Ljiljana S.

(2007)

TY  - JOUR
AU  - Leovac, Vukadin M.
AU  - Bogdanović, Goran A.
AU  - Cesljevic, Valerija I.
AU  - Jovanovic, Ljiljana S.
AU  - Novaković, Slađana B.
AU  - Vojinović-Ješić, Ljiljana S.
PY  - 2007
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3154
AB  - The ligand, salicylaldehyde Girard-T hydrazonium chloride, [H(2)SalGT]Cl (1), and two complexes [Cu(HSalGT)X-2]center dot H2O (X = Br(2); Cl(3)) were synthesized and their crystal structures were determined by single-crystal X-ray analysis. In the two isostructural complexes, the Cu(II) is located in a square-pyramidal environment, with the chelating ligand and one halogen atom in the basal plane and the second halogen in the apical position. The most apparent structural difference between the 1 and its complexes 2 and 3 is the orientation of the N(CH3)(3) group: in 1, it is practically coplanar to the rest of the molecule, while in 2 and 3 it is oriented to the side of the axially bonded halogen, which can be explained by the C-H center dot center dot center dot X intramolecular interactions. The compounds were characterized by elemental analysis, molar conductivity, magnetic susceptibility and electronic absorption spectra.
T2  - Structural Chemistry
T1  - Transition metal complexes with Girard reagent-based ligands. Part III. Synthesis and characterization of salicylaldehyde Girard-T hydrazone complexes. Crystal structure of ligand and two isostructural copper(II) complexes
VL  - 18
IS  - 1
SP  - 113
EP  - 119
DO  - 10.1007/s11224-006-9136-8
ER  - 
@article{
author = "Leovac, Vukadin M. and Bogdanović, Goran A. and Cesljevic, Valerija I. and Jovanovic, Ljiljana S. and Novaković, Slađana B. and Vojinović-Ješić, Ljiljana S.",
year = "2007",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3154",
abstract = "The ligand, salicylaldehyde Girard-T hydrazonium chloride, [H(2)SalGT]Cl (1), and two complexes [Cu(HSalGT)X-2]center dot H2O (X = Br(2); Cl(3)) were synthesized and their crystal structures were determined by single-crystal X-ray analysis. In the two isostructural complexes, the Cu(II) is located in a square-pyramidal environment, with the chelating ligand and one halogen atom in the basal plane and the second halogen in the apical position. The most apparent structural difference between the 1 and its complexes 2 and 3 is the orientation of the N(CH3)(3) group: in 1, it is practically coplanar to the rest of the molecule, while in 2 and 3 it is oriented to the side of the axially bonded halogen, which can be explained by the C-H center dot center dot center dot X intramolecular interactions. The compounds were characterized by elemental analysis, molar conductivity, magnetic susceptibility and electronic absorption spectra.",
journal = "Structural Chemistry",
title = "Transition metal complexes with Girard reagent-based ligands. Part III. Synthesis and characterization of salicylaldehyde Girard-T hydrazone complexes. Crystal structure of ligand and two isostructural copper(II) complexes",
volume = "18",
number = "1",
pages = "113-119",
doi = "10.1007/s11224-006-9136-8"
}
Leovac, V. M., Bogdanović, G. A., Cesljevic, V. I., Jovanovic, L. S., Novaković, S. B.,& Vojinović-Ješić, L. S. (2007). Transition metal complexes with Girard reagent-based ligands. Part III. Synthesis and characterization of salicylaldehyde Girard-T hydrazone complexes. Crystal structure of ligand and two isostructural copper(II) complexes.
Structural Chemistry, 18(1), 113-119.
https://doi.org/10.1007/s11224-006-9136-8
Leovac VM, Bogdanović GA, Cesljevic VI, Jovanovic LS, Novaković SB, Vojinović-Ješić LS. Transition metal complexes with Girard reagent-based ligands. Part III. Synthesis and characterization of salicylaldehyde Girard-T hydrazone complexes. Crystal structure of ligand and two isostructural copper(II) complexes. Structural Chemistry. 2007;18(1):113-119
Leovac Vukadin M., Bogdanović Goran A., Cesljevic Valerija I., Jovanovic Ljiljana S., Novaković Slađana B., Vojinović-Ješić Ljiljana S., "Transition metal complexes with Girard reagent-based ligands. Part III. Synthesis and characterization of salicylaldehyde Girard-T hydrazone complexes. Crystal structure of ligand and two isostructural copper(II) complexes" Structural Chemistry, 18, no. 1 (2007):113-119,
https://doi.org/10.1007/s11224-006-9136-8 .
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