Djurdjevic, P

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  • Djurdjevic, P (4)
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Author's Bibliography

Spectrophotometric and 27-Al NMR characterization of aluminum(III) complexes with L-histidine

Djurdjevic, P; Cvijović, Mirjana R.; Pavelkić, Vesna M.; Zakrzewska, J

(2005)

TY  - JOUR
AU  - Djurdjevic, P
AU  - Cvijović, Mirjana R.
AU  - Pavelkić, Vesna M.
AU  - Zakrzewska, J
PY  - 2005
UR  - http://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 = "Djurdjevic, P and Cvijović, Mirjana R. and Pavelkić, Vesna M. and Zakrzewska, J",
year = "2005",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/2967",
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"
}
Djurdjevic, P., Cvijović, M. R., Pavelkić, V. M.,& Zakrzewska, J. (2005). Spectrophotometric and 27-Al NMR characterization of aluminum(III) complexes with L-histidine.
Spectroscopy Letters, 38(4-5), 617-634.
https://doi.org/10.1081/SL-200062968
Djurdjevic P, Cvijović MR, Pavelkić VM, Zakrzewska J. Spectrophotometric and 27-Al NMR characterization of aluminum(III) complexes with L-histidine. Spectroscopy Letters. 2005;38(4-5):617-634
Djurdjevic P, Cvijović Mirjana R., Pavelkić Vesna M., Zakrzewska J, "Spectrophotometric and 27-Al NMR characterization of aluminum(III) complexes with L-histidine" Spectroscopy Letters, 38, no. 4-5 (2005):617-634,
https://doi.org/10.1081/SL-200062968 .
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Solution equilibria and characterization of the complex formed between hippuric acid and tin(II)

Djurdjevic, P; Đokić, Divna Đ.

(2000)

TY  - JOUR
AU  - Djurdjevic, P
AU  - Đokić, Divna Đ.
PY  - 2000
UR  - http://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
ER  - 
@article{
author = "Djurdjevic, P and Đokić, Divna Đ.",
year = "2000",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/2387",
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"
}
Djurdjevic, P.,& Đokić, D. Đ. (2000). Solution equilibria and characterization of the complex formed between hippuric acid and tin(II).
Main Group Metal Chemistry, 23(9), 505-512.
Djurdjevic P, Đokić DĐ. Solution equilibria and characterization of the complex formed between hippuric acid and tin(II). Main Group Metal Chemistry. 2000;23(9):505-512
Djurdjevic P, Đokić Divna Đ., "Solution equilibria and characterization of the complex formed between hippuric acid and tin(II)" Main Group Metal Chemistry, 23, no. 9 (2000):505-512
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Protein interactions with bivalent tin .1. Hydrolysis and complexation of tin(II) ion with glycine

Djurdjevic, P; Đokić, Divna Đ.

(1996)

TY  - JOUR
AU  - Djurdjevic, P
AU  - Đokić, Divna Đ.
PY  - 1996
UR  - http://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 = "Djurdjevic, P and Đokić, Divna Đ.",
year = "1996",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1975",
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"
}
Djurdjevic, P.,& Đokić, D. Đ. (1996). Protein interactions with bivalent tin .1. Hydrolysis and complexation of tin(II) ion with glycine.
Journal of Inorganic Biochemistry, 62(1), 17-29.
https://doi.org/10.1016/0162-0134(95)00085-2
Djurdjevic P, Đokić DĐ. Protein interactions with bivalent tin .1. Hydrolysis and complexation of tin(II) ion with glycine. Journal of Inorganic Biochemistry. 1996;62(1):17-29
Djurdjevic P, Đokić Divna Đ., "Protein interactions with bivalent tin .1. Hydrolysis and complexation of tin(II) ion with glycine" Journal of Inorganic Biochemistry, 62, no. 1 (1996):17-29,
https://doi.org/10.1016/0162-0134(95)00085-2 .
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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

Prelesnik, Bogdan V.; Radanovic, DD; Tomić, Zoran D.; Djurdjevic, P; Radanovic, DJ; Veselinović, Dragan S.

(1996)

TY  - JOUR
AU  - Prelesnik, Bogdan V.
AU  - Radanovic, DD
AU  - Tomić, Zoran D.
AU  - Djurdjevic, P
AU  - Radanovic, DJ
AU  - Veselinović, Dragan S.
PY  - 1996
UR  - http://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 Radanovic, DD and Tomić, Zoran D. and Djurdjevic, P and Radanovic, DJ and Veselinović, Dragan S.",
year = "1996",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/2005",
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., Radanovic, D., Tomić, Z. D., Djurdjevic, P., Radanovic, D.,& 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.
Polyhedron, 15(21), 3761-3770.
https://doi.org/10.1016/0277-5387(96)00115-5
Prelesnik BV, Radanovic D, Tomić ZD, Djurdjevic P, Radanovic D, 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. Polyhedron. 1996;15(21):3761-3770
Prelesnik Bogdan V., Radanovic DD, Tomić Zoran D., Djurdjevic P, Radanovic DJ, 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" Polyhedron, 15, no. 21 (1996):3761-3770,
https://doi.org/10.1016/0277-5387(96)00115-5 .
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