TY  - JOUR
AU  - Petrović, Marija
AU  - Popović, Suzana
AU  - Baskić, Dejan
AU  - Todorović, Miloš
AU  - Đurđević, Predrag
AU  - Ristić-Fira, Aleksandra
AU  - Keta, Otilija D.
AU  - Petković, Vladana
AU  - Korićanac, Lela
AU  - Stojković, Danijela
AU  - Jevtić, Verica
AU  - Trifunović, Srećko
AU  - Todorović, Danijela
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9631
AB  - Aim: Newly synthesized platinum(IV) complexes with ethylenediamine-N,N’-diacetate ligands (EDDA-type) (butyl-Pt and pentyl-Pt) were investigated against two cancer (A549 lung, and HTB 140 melanoma) and one non-cancerous (MRC-5 embryonic lung fibroblast) human cell lines. Materials and Methods: The effects of these agents were compared with those of cisplatin after 6-, 24- and 48-h treatment. Sulforhodamine-B (SRB) assay was performed to estimate the cytotoxic effect, while the inhibitory effect on cell proliferation was measured using 5-bromo-2,-deoxyuridine (BrdU) incorporation assay. Cell cycle analysis was performed by flow cytometry. Type of cell death induced by these agents was determined by electrophoretic analysis of DNA, flow cytometry and by western blot analysis of proteins involved in induction of apoptosis. The effects of gamma irradiation, alone and in combination with platinum-based compounds, were examined by clonogenic and SRB assays. Results: All examined platinum-based compounds had inhibitory and antiproliferative effects on A549 cells, but not on HTB140 and MRC-5 cells. Butyl-Pt, pentyl-Pt and cisplatin arrested the cell cycle in the S-phase and induced apoptotic cell death via regulation of expression of B-cell lymphoma 2 (BCL2) and BCL2-associated X (BAX) proteins. Platinum-based compounds increased the sensitivity of A549 cells to gamma irradiation. Butyl-Pt and pentyl-Pt showed better antitumour effects against A549 cells than did cisplatin, by interfering in cell proliferation and the cell cycle, and by triggering apoptosis. Conclusion: The effects of gamma irradiation on tumour cells may be amplified by pre-treatment of cells with platinum-based compounds.
T2  - Anticancer Research
T1  - The Effects of Newly Synthesized Platinum(IV) Complexes on Cytotoxicity and Radiosensitization of Human Tumour Cells In Vitro
VL  - 40
IS  - 9
SP  - 5001
EP  - 5013
DO  - 10.21873/anticanres.14503
ER  - 

@article{
author = "Petrović, Marija and Popović, Suzana and Baskić, Dejan and Todorović, Miloš and Đurđević, Predrag and Ristić-Fira, Aleksandra and Keta, Otilija D. and Petković, Vladana and Korićanac, Lela and Stojković, Danijela and Jevtić, Verica and Trifunović, Srećko and Todorović, Danijela",
year = "2020",
abstract = "Aim: Newly synthesized platinum(IV) complexes with ethylenediamine-N,N’-diacetate ligands (EDDA-type) (butyl-Pt and pentyl-Pt) were investigated against two cancer (A549 lung, and HTB 140 melanoma) and one non-cancerous (MRC-5 embryonic lung fibroblast) human cell lines. Materials and Methods: The effects of these agents were compared with those of cisplatin after 6-, 24- and 48-h treatment. Sulforhodamine-B (SRB) assay was performed to estimate the cytotoxic effect, while the inhibitory effect on cell proliferation was measured using 5-bromo-2,-deoxyuridine (BrdU) incorporation assay. Cell cycle analysis was performed by flow cytometry. Type of cell death induced by these agents was determined by electrophoretic analysis of DNA, flow cytometry and by western blot analysis of proteins involved in induction of apoptosis. The effects of gamma irradiation, alone and in combination with platinum-based compounds, were examined by clonogenic and SRB assays. Results: All examined platinum-based compounds had inhibitory and antiproliferative effects on A549 cells, but not on HTB140 and MRC-5 cells. Butyl-Pt, pentyl-Pt and cisplatin arrested the cell cycle in the S-phase and induced apoptotic cell death via regulation of expression of B-cell lymphoma 2 (BCL2) and BCL2-associated X (BAX) proteins. Platinum-based compounds increased the sensitivity of A549 cells to gamma irradiation. Butyl-Pt and pentyl-Pt showed better antitumour effects against A549 cells than did cisplatin, by interfering in cell proliferation and the cell cycle, and by triggering apoptosis. Conclusion: The effects of gamma irradiation on tumour cells may be amplified by pre-treatment of cells with platinum-based compounds.",
journal = "Anticancer Research",
title = "The Effects of Newly Synthesized Platinum(IV) Complexes on Cytotoxicity and Radiosensitization of Human Tumour Cells In Vitro",
volume = "40",
number = "9",
pages = "5001-5013",
doi = "10.21873/anticanres.14503"
}

Petrović, M., Popović, S., Baskić, D., Todorović, M., Đurđević, P., Ristić-Fira, A., Keta, O. D., Petković, V., Korićanac, L., Stojković, D., Jevtić, V., Trifunović, S.,& Todorović, D.. (2020). The Effects of Newly Synthesized Platinum(IV) Complexes on Cytotoxicity and Radiosensitization of Human Tumour Cells In Vitro. in Anticancer Research, 40(9), 5001-5013.
https://doi.org/10.21873/anticanres.14503

Petrović M, Popović S, Baskić D, Todorović M, Đurđević P, Ristić-Fira A, Keta OD, Petković V, Korićanac L, Stojković D, Jevtić V, Trifunović S, Todorović D. The Effects of Newly Synthesized Platinum(IV) Complexes on Cytotoxicity and Radiosensitization of Human Tumour Cells In Vitro. in Anticancer Research. 2020;40(9):5001-5013.
doi:10.21873/anticanres.14503 .

Petrović, Marija, Popović, Suzana, Baskić, Dejan, Todorović, Miloš, Đurđević, Predrag, Ristić-Fira, Aleksandra, Keta, Otilija D., Petković, Vladana, Korićanac, Lela, Stojković, Danijela, Jevtić, Verica, Trifunović, Srećko, Todorović, Danijela, "The Effects of Newly Synthesized Platinum(IV) Complexes on Cytotoxicity and Radiosensitization of Human Tumour Cells In Vitro" in Anticancer Research, 40, no. 9 (2020):5001-5013,
https://doi.org/10.21873/anticanres.14503 . .

TY  - JOUR
AU  - Jakovljević, Ivan
AU  - Petrović, Đorđe
AU  - Joksović, Ljubinka G.
AU  - Lazarević, Ivan
AU  - Jelikić-Stankov, Milena
AU  - Đurđević, Predrag
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/833
AB  - Complex formation equilibria of aluminum(III), gadolinium(III), and yttrium(III) ions with the fluoroquinolone antibacterials moxifloxacin, ofloxacin, fleroxacin, lomefloxacin, levofloxacin, and ciprofloxacin were studied in aqueous solution by potentiometric and spectroscopic methods. The identity and stability of metal-fluoroquinolone complexes were determined by analyzing potentiometric titration curves (310K, =0.15M NaCl, pH range=2-11, C-L/C-M=1:1 to 3:1, C-M=1.0mM) with the aid of Hyperquad2006 program. The main species formed in the system may be formulated as MpHqLr (p=1, q=-2 to 2, r=1-3, L=fluoroquinolone anion, logarithm of overall stability constant, log (p,q,r)=in the range ca. -10 to 45). The stability of complexes is mostly influenced by metal ion properties (ionization potential, ionic radius) indicating partial ionic character of the coordination bond. The complexes were also characterized by spectroscopic measurements: spectrofluorimetry, H-1-NMR, and ESI-MS. Fluorimetric data were evaluated with the aid of HypSpec2014 and indicated the formation of MLr (r=1-3) complexes with cumulative conditional stability constants significantly lower than the thermodynamic ones. NMR and MS data corroborate potentiometrically determined speciation. Calculated plasma mobilizing capacity of the ligands generally follows the order levofloxacin GT moxifloxacin GT ciprofloxacin at concentration levels of the ligands higher or equal to ca. 10(-4)M.
PB  - Taylor & Francis
T2  - Journal of Coordination Chemistry
T1  - Complex formation equilibria between aluminum(III), gadolinium(III) and yttrium(III) ions and some fluoroquinolone ligands. Potentiometric and spectroscopic study
VL  - 68
IS  - 24
SP  - 4272
EP  - 4295
DO  - 10.1080/00958972.2015.1089535
ER  - 

@article{
author = "Jakovljević, Ivan and Petrović, Đorđe and Joksović, Ljubinka G. and Lazarević, Ivan and Jelikić-Stankov, Milena and Đurđević, Predrag",
year = "2015",
abstract = "Complex formation equilibria of aluminum(III), gadolinium(III), and yttrium(III) ions with the fluoroquinolone antibacterials moxifloxacin, ofloxacin, fleroxacin, lomefloxacin, levofloxacin, and ciprofloxacin were studied in aqueous solution by potentiometric and spectroscopic methods. The identity and stability of metal-fluoroquinolone complexes were determined by analyzing potentiometric titration curves (310K, =0.15M NaCl, pH range=2-11, C-L/C-M=1:1 to 3:1, C-M=1.0mM) with the aid of Hyperquad2006 program. The main species formed in the system may be formulated as MpHqLr (p=1, q=-2 to 2, r=1-3, L=fluoroquinolone anion, logarithm of overall stability constant, log (p,q,r)=in the range ca. -10 to 45). The stability of complexes is mostly influenced by metal ion properties (ionization potential, ionic radius) indicating partial ionic character of the coordination bond. The complexes were also characterized by spectroscopic measurements: spectrofluorimetry, H-1-NMR, and ESI-MS. Fluorimetric data were evaluated with the aid of HypSpec2014 and indicated the formation of MLr (r=1-3) complexes with cumulative conditional stability constants significantly lower than the thermodynamic ones. NMR and MS data corroborate potentiometrically determined speciation. Calculated plasma mobilizing capacity of the ligands generally follows the order levofloxacin GT moxifloxacin GT ciprofloxacin at concentration levels of the ligands higher or equal to ca. 10(-4)M.",
publisher = "Taylor & Francis",
journal = "Journal of Coordination Chemistry",
title = "Complex formation equilibria between aluminum(III), gadolinium(III) and yttrium(III) ions and some fluoroquinolone ligands. Potentiometric and spectroscopic study",
volume = "68",
number = "24",
pages = "4272-4295",
doi = "10.1080/00958972.2015.1089535"
}

Jakovljević, I., Petrović, Đ., Joksović, L. G., Lazarević, I., Jelikić-Stankov, M.,& Đurđević, P.. (2015). Complex formation equilibria between aluminum(III), gadolinium(III) and yttrium(III) ions and some fluoroquinolone ligands. Potentiometric and spectroscopic study. in Journal of Coordination Chemistry
Taylor & Francis., 68(24), 4272-4295.
https://doi.org/10.1080/00958972.2015.1089535

Jakovljević I, Petrović Đ, Joksović LG, Lazarević I, Jelikić-Stankov M, Đurđević P. Complex formation equilibria between aluminum(III), gadolinium(III) and yttrium(III) ions and some fluoroquinolone ligands. Potentiometric and spectroscopic study. in Journal of Coordination Chemistry. 2015;68(24):4272-4295.
doi:10.1080/00958972.2015.1089535 .

Jakovljević, Ivan, Petrović, Đorđe, Joksović, Ljubinka G., Lazarević, Ivan, Jelikić-Stankov, Milena, Đurđević, Predrag, "Complex formation equilibria between aluminum(III), gadolinium(III) and yttrium(III) ions and some fluoroquinolone ligands. Potentiometric and spectroscopic study" in Journal of Coordination Chemistry, 68, no. 24 (2015):4272-4295,
https://doi.org/10.1080/00958972.2015.1089535 . .

TY  - JOUR
AU  - Đurđević, Predrag
AU  - Cvijović, Mirjana R.
AU  - Pavelkić, Vesna M.
AU  - Zakrzewska, J
PY  - 2005
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2967
AB  - The complex formation between L-histidine (HHis) and aluminum(III) ion in water solutions was studied by UV spectrophotometric and 27-Al NMR measurements at 298 K. UV spectra were measured on solutions in which the total concentration of histidine was from 15.0 to 50.0 mmol/dm(3) and the concentration ratio of histidine to aluminum was varied from 3 : 1 to 10 : 1 in the pH range between 4.2 and 6.0. The spectra were taken in the wavelength interval 240 - 340 nm. Nonlinear least-squares treatment of the spectrophotometric data indicates the formation of the complexes Al(HHis)(3+), Al(His)(2+), Al(HHis)His(2+), and Al-2(OH)His(4+) with the overall formation constants beta(p,q,r): log beta(1,1,1) = 11.90 +/- 0.04, log beta(1,1,0) = 7.25 +/- 0.08, log beta(1,2,1) = 20.1 +/- 0.1, and log beta(2,1,1) = 5.92 +/- 0.12 ( p, q, r are stoichiometric indices for metal, ligand, and proton, respectively). Al-27-NMR spectra were taken on solutions with the concentration of aluminum 50 mmol/dm(3) and that of histidine 250 mmol/dm(3). In the pH interval 5.0 - 6.1, two resonances at 9.5 ppm and 12.0 ppm were assigned to Al(HHis)(2+) and Al( HHis)(His)(2+) (or Al(OH)(HHis)(2)(2+)), respectively.
T2  - Spectroscopy Letters
T1  - Spectrophotometric and 27-Al NMR characterization of aluminum(III) complexes with L-histidine
VL  - 38
IS  - 4-5
SP  - 617
EP  - 634
DO  - 10.1081/SL-200062968
ER  - 

@article{
author = "Đurđević, Predrag and Cvijović, Mirjana R. and Pavelkić, Vesna M. and Zakrzewska, J",
year = "2005",
abstract = "The complex formation between L-histidine (HHis) and aluminum(III) ion in water solutions was studied by UV spectrophotometric and 27-Al NMR measurements at 298 K. UV spectra were measured on solutions in which the total concentration of histidine was from 15.0 to 50.0 mmol/dm(3) and the concentration ratio of histidine to aluminum was varied from 3 : 1 to 10 : 1 in the pH range between 4.2 and 6.0. The spectra were taken in the wavelength interval 240 - 340 nm. Nonlinear least-squares treatment of the spectrophotometric data indicates the formation of the complexes Al(HHis)(3+), Al(His)(2+), Al(HHis)His(2+), and Al-2(OH)His(4+) with the overall formation constants beta(p,q,r): log beta(1,1,1) = 11.90 +/- 0.04, log beta(1,1,0) = 7.25 +/- 0.08, log beta(1,2,1) = 20.1 +/- 0.1, and log beta(2,1,1) = 5.92 +/- 0.12 ( p, q, r are stoichiometric indices for metal, ligand, and proton, respectively). Al-27-NMR spectra were taken on solutions with the concentration of aluminum 50 mmol/dm(3) and that of histidine 250 mmol/dm(3). In the pH interval 5.0 - 6.1, two resonances at 9.5 ppm and 12.0 ppm were assigned to Al(HHis)(2+) and Al( HHis)(His)(2+) (or Al(OH)(HHis)(2)(2+)), respectively.",
journal = "Spectroscopy Letters",
title = "Spectrophotometric and 27-Al NMR characterization of aluminum(III) complexes with L-histidine",
volume = "38",
number = "4-5",
pages = "617-634",
doi = "10.1081/SL-200062968"
}

Đurđević, P., Cvijović, M. R., Pavelkić, V. M.,& Zakrzewska, J.. (2005). Spectrophotometric and 27-Al NMR characterization of aluminum(III) complexes with L-histidine. in Spectroscopy Letters, 38(4-5), 617-634.
https://doi.org/10.1081/SL-200062968

Đurđević P, Cvijović MR, Pavelkić VM, Zakrzewska J. Spectrophotometric and 27-Al NMR characterization of aluminum(III) complexes with L-histidine. in Spectroscopy Letters. 2005;38(4-5):617-634.
doi:10.1081/SL-200062968 .

Đurđević, Predrag, Cvijović, Mirjana R., Pavelkić, Vesna M., Zakrzewska, J, "Spectrophotometric and 27-Al NMR characterization of aluminum(III) complexes with L-histidine" in Spectroscopy Letters, 38, no. 4-5 (2005):617-634,
https://doi.org/10.1081/SL-200062968 . .

TY  - CONF
AU  - Cvijović, Mirjana R.
AU  - Pavelkić, Vesna M.
AU  - Miljević, Nada R.
AU  - Stanisavljev, Dragomir R.
AU  - Đurđević, Predrag
PY  - 2004
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9602
AB  - Aluminium(III) ion and L-histidine (HHis) react in water solution to yield two mononuclear binary complexes [Al(HHis)]3+ and [Al(HHis)His] 2+. The over-all stability constants for these complexes were calculated by non-linearleast-squarestreatment of the spectrophotometric data and found to be: log β1,1,1 = 13.12 ± 0.04, log β1,2,1 = 20.9 ± 0.1, respectively. Indices refer to stoichiometric coefficients in complexation equilibrium: p Al + q His + r H → [AlpHisqHr]. The possible structures of the complexes in solution, are discussed.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2004: 7th international conference on fundemental and applied aspract of physical chemistry
T1  - Spectrophotometric study of solution equilibria between Al3+ ion and L-histidine
VL  - 2
SP  - 805
EP  - 807
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9602
ER  - 

@conference{
author = "Cvijović, Mirjana R. and Pavelkić, Vesna M. and Miljević, Nada R. and Stanisavljev, Dragomir R. and Đurđević, Predrag",
year = "2004",
abstract = "Aluminium(III) ion and L-histidine (HHis) react in water solution to yield two mononuclear binary complexes [Al(HHis)]3+ and [Al(HHis)His] 2+. The over-all stability constants for these complexes were calculated by non-linearleast-squarestreatment of the spectrophotometric data and found to be: log β1,1,1 = 13.12 ± 0.04, log β1,2,1 = 20.9 ± 0.1, respectively. Indices refer to stoichiometric coefficients in complexation equilibrium: p Al + q His + r H → [AlpHisqHr]. The possible structures of the complexes in solution, are discussed.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2004: 7th international conference on fundemental and applied aspract of physical chemistry",
title = "Spectrophotometric study of solution equilibria between Al3+ ion and L-histidine",
volume = "2",
pages = "805-807",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9602"
}

Cvijović, M. R., Pavelkić, V. M., Miljević, N. R., Stanisavljev, D. R.,& Đurđević, P.. (2004). Spectrophotometric study of solution equilibria between Al3+ ion and L-histidine. in Physical chemistry 2004: 7th international conference on fundemental and applied aspract of physical chemistry
Society of Physical Chemists of Serbia., 2, 805-807.
https://hdl.handle.net/21.15107/rcub_vinar_9602

Cvijović MR, Pavelkić VM, Miljević NR, Stanisavljev DR, Đurđević P. Spectrophotometric study of solution equilibria between Al3+ ion and L-histidine. in Physical chemistry 2004: 7th international conference on fundemental and applied aspract of physical chemistry. 2004;2:805-807.
https://hdl.handle.net/21.15107/rcub_vinar_9602 .

Cvijović, Mirjana R., Pavelkić, Vesna M., Miljević, Nada R., Stanisavljev, Dragomir R., Đurđević, Predrag, "Spectrophotometric study of solution equilibria between Al3+ ion and L-histidine" in Physical chemistry 2004: 7th international conference on fundemental and applied aspract of physical chemistry, 2 (2004):805-807,
https://hdl.handle.net/21.15107/rcub_vinar_9602 .

TY  - JOUR
AU  - Đurđević, Predrag
AU  - Đokić, Divna Đ.
PY  - 2000
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2387
AB  - The complex formation equilibria in tin(II) - hippuric acid (Hhip) solutions were investigated by potentiometric glass electrode measurements in 1.0 mol/L NaCl ionic medium at 298 K. Non-linear least-squares analysts of the obtained results indicate that in the concentration range of tin(II) between 0.5 and 2.5 mmol/L and concentration ratios [hip](tot)/[Sn-0(2+)](tot) between 1:1 and 10:1 and 1.5 LT - log h LT 3.0 the complexes Sn(hip)(+) and Sn(OH)hip are formed with the overall stability constants 4.53 +/- 0.03 and 1.20 +/- 0.10 respectively. The hydrolytic precipitate, Sn(OH)hip, formed in the pH interval 5.0-6.0, was isolated from the solution and characterized by elemental analysis, scanning electron microscopy, thermogravimetry, X-ray powder diffraction and i.r. spectroscopy.
T2  - Main Group Metal Chemistry
T1  - Solution equilibria and characterization of the complex formed between hippuric acid and tin(II)
VL  - 23
IS  - 9
SP  - 505
EP  - 512
UR  - https://hdl.handle.net/21.15107/rcub_vinar_2387
ER  - 

@article{
author = "Đurđević, Predrag and Đokić, Divna Đ.",
year = "2000",
abstract = "The complex formation equilibria in tin(II) - hippuric acid (Hhip) solutions were investigated by potentiometric glass electrode measurements in 1.0 mol/L NaCl ionic medium at 298 K. Non-linear least-squares analysts of the obtained results indicate that in the concentration range of tin(II) between 0.5 and 2.5 mmol/L and concentration ratios [hip](tot)/[Sn-0(2+)](tot) between 1:1 and 10:1 and 1.5 LT - log h LT 3.0 the complexes Sn(hip)(+) and Sn(OH)hip are formed with the overall stability constants 4.53 +/- 0.03 and 1.20 +/- 0.10 respectively. The hydrolytic precipitate, Sn(OH)hip, formed in the pH interval 5.0-6.0, was isolated from the solution and characterized by elemental analysis, scanning electron microscopy, thermogravimetry, X-ray powder diffraction and i.r. spectroscopy.",
journal = "Main Group Metal Chemistry",
title = "Solution equilibria and characterization of the complex formed between hippuric acid and tin(II)",
volume = "23",
number = "9",
pages = "505-512",
url = "https://hdl.handle.net/21.15107/rcub_vinar_2387"
}

Đurđević, P.,& Đokić, D. Đ.. (2000). Solution equilibria and characterization of the complex formed between hippuric acid and tin(II). in Main Group Metal Chemistry, 23(9), 505-512.
https://hdl.handle.net/21.15107/rcub_vinar_2387

Đurđević P, Đokić DĐ. Solution equilibria and characterization of the complex formed between hippuric acid and tin(II). in Main Group Metal Chemistry. 2000;23(9):505-512.
https://hdl.handle.net/21.15107/rcub_vinar_2387 .

Đurđević, Predrag, Đokić, Divna Đ., "Solution equilibria and characterization of the complex formed between hippuric acid and tin(II)" in Main Group Metal Chemistry, 23, no. 9 (2000):505-512,
https://hdl.handle.net/21.15107/rcub_vinar_2387 .

TY  - JOUR
AU  - Prelesnik, Bogdan V.
AU  - Radanović, Dušanka D.
AU  - Tomić, Zoran D.
AU  - Đurđević, Predrag
AU  - Radanović, Dušan J.
AU  - Veselinović, Dragan S.
PY  - 1996
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2005
AB  - The hexadentate complex [Cu(H(2)1,3-pddadp)]. 1.5H(2)O (1,3-pddadp = 1,3-propanediamine-N,N-diacetate-N,N-di-3-propionate ion) has been prepared and isolated and its molecular structure determined by the single crystal X-ray diffraction technique. The complex is a trans(O-6) isomer, in which the copper(II) ion is surrounded octahedrally by two nitrogen and four oxygen atoms of 1,3-pddadp with two protonated beta-alaninate rings in trans positions. The copper atom environment is a tetragonally elongated octahedron with tetragonality (T) 0.798. A comparison of structures of the copper(II)-edta-type complexes shows an expected variation in their stereochemistry, depending on the structure of the ligand. The 1,3-pddadp ligand encircles the Cu-II ion more favourably than the edta ligand, which is capable of forming five-membered chelate rings only. Some properties of the complex are also given. Copyright (C) 1996 Elsevier Science Ltd
T2  - Polyhedron
T1  - Preparation and molecular structure of the trans(O-6) isomer of dihydrogen (1,3-propanediamine-N,N-diacetato-N,N-di-3-propionato)copper(II) complex. The stereochemistry of copper(II)-EDTA-type complexes in relation to the structure of the ligand
VL  - 15
IS  - 21
SP  - 3761
EP  - 3770
DO  - 10.1016/0277-5387(96)00115-5
ER  - 

@article{
author = "Prelesnik, Bogdan V. and Radanović, Dušanka D. and Tomić, Zoran D. and Đurđević, Predrag and Radanović, Dušan J. and Veselinović, Dragan S.",
year = "1996",
abstract = "The hexadentate complex [Cu(H(2)1,3-pddadp)]. 1.5H(2)O (1,3-pddadp = 1,3-propanediamine-N,N-diacetate-N,N-di-3-propionate ion) has been prepared and isolated and its molecular structure determined by the single crystal X-ray diffraction technique. The complex is a trans(O-6) isomer, in which the copper(II) ion is surrounded octahedrally by two nitrogen and four oxygen atoms of 1,3-pddadp with two protonated beta-alaninate rings in trans positions. The copper atom environment is a tetragonally elongated octahedron with tetragonality (T) 0.798. A comparison of structures of the copper(II)-edta-type complexes shows an expected variation in their stereochemistry, depending on the structure of the ligand. The 1,3-pddadp ligand encircles the Cu-II ion more favourably than the edta ligand, which is capable of forming five-membered chelate rings only. Some properties of the complex are also given. Copyright (C) 1996 Elsevier Science Ltd",
journal = "Polyhedron",
title = "Preparation and molecular structure of the trans(O-6) isomer of dihydrogen (1,3-propanediamine-N,N-diacetato-N,N-di-3-propionato)copper(II) complex. The stereochemistry of copper(II)-EDTA-type complexes in relation to the structure of the ligand",
volume = "15",
number = "21",
pages = "3761-3770",
doi = "10.1016/0277-5387(96)00115-5"
}

Prelesnik, B. V., Radanović, D. D., Tomić, Z. D., Đurđević, P., Radanović, D. J.,& Veselinović, D. S.. (1996). Preparation and molecular structure of the trans(O-6) isomer of dihydrogen (1,3-propanediamine-N,N-diacetato-N,N-di-3-propionato)copper(II) complex. The stereochemistry of copper(II)-EDTA-type complexes in relation to the structure of the ligand. in Polyhedron, 15(21), 3761-3770.
https://doi.org/10.1016/0277-5387(96)00115-5

Prelesnik BV, Radanović DD, Tomić ZD, Đurđević P, Radanović DJ, Veselinović DS. Preparation and molecular structure of the trans(O-6) isomer of dihydrogen (1,3-propanediamine-N,N-diacetato-N,N-di-3-propionato)copper(II) complex. The stereochemistry of copper(II)-EDTA-type complexes in relation to the structure of the ligand. in Polyhedron. 1996;15(21):3761-3770.
doi:10.1016/0277-5387(96)00115-5 .

Prelesnik, Bogdan V., Radanović, Dušanka D., Tomić, Zoran D., Đurđević, Predrag, Radanović, Dušan J., Veselinović, Dragan S., "Preparation and molecular structure of the trans(O-6) isomer of dihydrogen (1,3-propanediamine-N,N-diacetato-N,N-di-3-propionato)copper(II) complex. The stereochemistry of copper(II)-EDTA-type complexes in relation to the structure of the ligand" in Polyhedron, 15, no. 21 (1996):3761-3770,
https://doi.org/10.1016/0277-5387(96)00115-5 . .

TY  - JOUR
AU  - Đurđević, Predrag
AU  - Đokić, Divna Đ.
PY  - 1996
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1975
AB  - The complexation between tin(II) ion and glycine was studied in 0.15 mol/dm(3) NaCl medium at 310 K using potentiometric glass electrode titrations. In the pH range 1.1-4.5 and concentration range of the tin(II) between 0.2 and 5.0 mmol/dm(3), with variable glycine-to-tin molar ratio up to 10:1, the experimental data were explained by the formation of the following complexes and their overall stability constants: log(beta +/- sigma): Sn(HGly)(+), (12.78 +/- 0.08); Sn(Gly)(+), (10.02 +/- 0.07); Sn(OH)Gly, (7.34 +/- 0.03), as well as the pure hydrolytic complex Sn-4(OH)(6)(2+), whose stability constant was determined in separate experiments and found to be -4.30 +/- 0.08, under the same experimental conditions as for complexation study. The precipitate formed in tin(II)-glycine system at pH ca. 5.0 was characterized by chemical and TG analysis, I. R. spectra, X-ray powder diffraction, and electron scanning microscopy measurements. It has been shown that the precipitate has the composition Sn(OH)Gly and crystallizes in a tetragonal system with unit cell dimensions a = b = 1.584 nm, c = 0.597 nm. The mechanism of the complex formation in solution is discussed.
T2  - Journal of Inorganic Biochemistry
T1  - Protein interactions with bivalent tin .1. Hydrolysis and complexation of tin(II) ion with glycine
VL  - 62
IS  - 1
SP  - 17
EP  - 29
DO  - 10.1016/0162-0134(95)00085-2
ER  - 

@article{
author = "Đurđević, Predrag and Đokić, Divna Đ.",
year = "1996",
abstract = "The complexation between tin(II) ion and glycine was studied in 0.15 mol/dm(3) NaCl medium at 310 K using potentiometric glass electrode titrations. In the pH range 1.1-4.5 and concentration range of the tin(II) between 0.2 and 5.0 mmol/dm(3), with variable glycine-to-tin molar ratio up to 10:1, the experimental data were explained by the formation of the following complexes and their overall stability constants: log(beta +/- sigma): Sn(HGly)(+), (12.78 +/- 0.08); Sn(Gly)(+), (10.02 +/- 0.07); Sn(OH)Gly, (7.34 +/- 0.03), as well as the pure hydrolytic complex Sn-4(OH)(6)(2+), whose stability constant was determined in separate experiments and found to be -4.30 +/- 0.08, under the same experimental conditions as for complexation study. The precipitate formed in tin(II)-glycine system at pH ca. 5.0 was characterized by chemical and TG analysis, I. R. spectra, X-ray powder diffraction, and electron scanning microscopy measurements. It has been shown that the precipitate has the composition Sn(OH)Gly and crystallizes in a tetragonal system with unit cell dimensions a = b = 1.584 nm, c = 0.597 nm. The mechanism of the complex formation in solution is discussed.",
journal = "Journal of Inorganic Biochemistry",
title = "Protein interactions with bivalent tin .1. Hydrolysis and complexation of tin(II) ion with glycine",
volume = "62",
number = "1",
pages = "17-29",
doi = "10.1016/0162-0134(95)00085-2"
}

Đurđević, P.,& Đokić, D. Đ.. (1996). Protein interactions with bivalent tin .1. Hydrolysis and complexation of tin(II) ion with glycine. in Journal of Inorganic Biochemistry, 62(1), 17-29.
https://doi.org/10.1016/0162-0134(95)00085-2

Đurđević P, Đokić DĐ. Protein interactions with bivalent tin .1. Hydrolysis and complexation of tin(II) ion with glycine. in Journal of Inorganic Biochemistry. 1996;62(1):17-29.
doi:10.1016/0162-0134(95)00085-2 .

Đurđević, Predrag, Đokić, Divna Đ., "Protein interactions with bivalent tin .1. Hydrolysis and complexation of tin(II) ion with glycine" in Journal of Inorganic Biochemistry, 62, no. 1 (1996):17-29,
https://doi.org/10.1016/0162-0134(95)00085-2 . .