Sinteze, fizičke, strukturne i biološke karakteristike novih kompleksnih jedenjenja

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Sinteze, fizičke, strukturne i biološke karakteristike novih kompleksnih jedenjenja (en)
Синтезе, физичке, структурне и биолошке карактеристике нових комплексних једењења (sr)
Sinteze, fizičke, strukturne i biološke karakteristike novih kompleksnih jedenjenja (sr_RS)
Authors

Publications

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  - https://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",
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. in 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. in Journal of the Serbian Chemical Society. 2009;74(11):1259-1271.
doi:10.2298/JSC0911259J .
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" in Journal of the Serbian Chemical Society, 74, no. 11 (2009):1259-1271,
https://doi.org/10.2298/JSC0911259J . .
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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; Jovanović, Ljiljana S.; Joksović, Milan D.

(2007)

TY  - JOUR
AU  - Leovac, Vukadin M.
AU  - Tomić, Zoran D.
AU  - Szecsenyi, Katalin Meszaros
AU  - Jovanović, Ljiljana S.
AU  - Joksović, Milan D.
PY  - 2007
UR  - https://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 Jovanović, Ljiljana S. and Joksović, Milan D.",
year = "2007",
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., Jovanović, 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. in Journal of the Serbian Chemical Society, 72(12), 1281-1293.
https://doi.org/10.2298/JSC0712281L
Leovac VM, Tomić ZD, Szecsenyi KM, Jovanović 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. in Journal of the Serbian Chemical Society. 2007;72(12):1281-1293.
doi:10.2298/JSC0712281L .
Leovac, Vukadin M., Tomić, Zoran D., Szecsenyi, Katalin Meszaros, Jovanović, 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" in Journal of the Serbian Chemical Society, 72, no. 12 (2007):1281-1293,
https://doi.org/10.2298/JSC0712281L . .
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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 Biré, Anne

(2007)

TY  - JOUR
AU  - Bogdanović, Goran A.
AU  - Leovac, Vukadin M.
AU  - Vojinović-Ješić, Ljiljana S.
AU  - Spasojević-de Biré, Anne
PY  - 2007
UR  - https://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 Biré, Anne",
year = "2007",
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 Biré, A.. (2007). Crystal structure of tris(pyridine)(salicylaldehyde semicarbazonato(2-))cobalt(III)-trichloropyridinecobaltate(II) at 293 and 120 K. in 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 Biré A. Crystal structure of tris(pyridine)(salicylaldehyde semicarbazonato(2-))cobalt(III)-trichloropyridinecobaltate(II) at 293 and 120 K. in Journal of the Serbian Chemical Society. 2007;72(1):63-71.
doi:10.2298/JSC0701063B .
Bogdanović, Goran A., Leovac, Vukadin M., Vojinović-Ješić, Ljiljana S., Spasojević-de Biré, Anne, "Crystal structure of tris(pyridine)(salicylaldehyde semicarbazonato(2-))cobalt(III)-trichloropyridinecobaltate(II) at 293 and 120 K" in 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.; Češljević, Valerija I.; Jovanović, Ljiljana S.; Novaković, Slađana B.; Vojinović-Ješić, Ljiljana S.

(Springer, 2007)

TY  - JOUR
AU  - Leovac, Vukadin M.
AU  - Bogdanović, Goran A.
AU  - Češljević, Valerija I.
AU  - Jovanović, Ljiljana S.
AU  - Novaković, Slađana B.
AU  - Vojinović-Ješić, Ljiljana S.
PY  - 2007
UR  - https://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.
PB  - Springer
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 Češljević, Valerija I. and Jovanović, Ljiljana S. and Novaković, Slađana B. and Vojinović-Ješić, Ljiljana S.",
year = "2007",
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.",
publisher = "Springer",
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., Češljević, V. I., Jovanović, 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. in Structural Chemistry
Springer., 18(1), 113-119.
https://doi.org/10.1007/s11224-006-9136-8
Leovac VM, Bogdanović GA, Češljević VI, Jovanović 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. in Structural Chemistry. 2007;18(1):113-119.
doi:10.1007/s11224-006-9136-8 .
Leovac, Vukadin M., Bogdanović, Goran A., Češljević, Valerija I., Jovanović, 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" in Structural Chemistry, 18, no. 1 (2007):113-119,
https://doi.org/10.1007/s11224-006-9136-8 . .
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