TY  - JOUR
AU  - Miodragović Đenana U.
AU  - Vitnik, ZJ
AU  - Milosavljević, Slobodan M.
AU  - Malinar, M.J.
AU  - Juranić, Ivan O.
PY  - 2005
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/727
AB  - Conformational analysis based on an analysis of the vicinal alpha- and beta-proton coupling constants of (S)-tyrosinato ligands in diastereomers of a bis[(S)-tyrosinato](1,3-diaminopropane)cobalt(III) complex is used to calculate the mol fractions of the three most stable rotamers (t, g, h) of the (S)-tyrosinato ligand's side groups in D2O solution. The results of this conformational analysis indicate a population increase in the sterically least favorable rotamer h in diastereomers of Cl-molecular symmetry (complexes 5 and 6). The TOCSY spectrum of complex 6 in aqueous solution shows an exceptionally small chemical shift of one NH2 proton from the coordinated diamine, which is explained by an interligand NH center dot center dot center dot pi interaction. These findings demonstrate the persistence of this weak, noncovalent interaction in water solution. DFT calculations for complex 6, whose diamine ring is in a chair conformation, indicate that the complex with an h conformation in both its (S)-tyrosinato ligand side-residues, which yields the most frequent NH center dot center dot center dot pi interactions, represents an energy minimum. The fact that coordinated 1,3-diaminopropane in the examined complex 6 is in a chair conformation in aqueous solution is proved by the NMR analysis. (c) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005.
PB  - Wiley-V C H Verlag Gmbh, Weinheim
T2  - European Journal of Inorganic Chemistry
T1  - NH...pi interactions stabilize the most-hindered rotamer of the (S)-tyrosinato side group in bis[(S)-tyrosinato](diamine)cobalt(III) complexes: An NMR spectroscopic and DFT study
IS  - 15
SP  - 3172
EP  - 3178
DO  - 10.1002/ejic.200400873
ER  - 

@article{
author = "Miodragović Đenana U. and Vitnik, ZJ and Milosavljević, Slobodan M. and Malinar, M.J. and Juranić, Ivan O.",
year = "2005",
abstract = "Conformational analysis based on an analysis of the vicinal alpha- and beta-proton coupling constants of (S)-tyrosinato ligands in diastereomers of a bis[(S)-tyrosinato](1,3-diaminopropane)cobalt(III) complex is used to calculate the mol fractions of the three most stable rotamers (t, g, h) of the (S)-tyrosinato ligand's side groups in D2O solution. The results of this conformational analysis indicate a population increase in the sterically least favorable rotamer h in diastereomers of Cl-molecular symmetry (complexes 5 and 6). The TOCSY spectrum of complex 6 in aqueous solution shows an exceptionally small chemical shift of one NH2 proton from the coordinated diamine, which is explained by an interligand NH center dot center dot center dot pi interaction. These findings demonstrate the persistence of this weak, noncovalent interaction in water solution. DFT calculations for complex 6, whose diamine ring is in a chair conformation, indicate that the complex with an h conformation in both its (S)-tyrosinato ligand side-residues, which yields the most frequent NH center dot center dot center dot pi interactions, represents an energy minimum. The fact that coordinated 1,3-diaminopropane in the examined complex 6 is in a chair conformation in aqueous solution is proved by the NMR analysis. (c) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005.",
publisher = "Wiley-V C H Verlag Gmbh, Weinheim",
journal = "European Journal of Inorganic Chemistry",
title = "NH...pi interactions stabilize the most-hindered rotamer of the (S)-tyrosinato side group in bis[(S)-tyrosinato](diamine)cobalt(III) complexes: An NMR spectroscopic and DFT study",
number = "15",
pages = "3172-3178",
doi = "10.1002/ejic.200400873"
}

Miodragović Đenana U., Vitnik, Z., Milosavljević, S. M., Malinar, M.J.,& Juranić, I. O.. (2005). NH...pi interactions stabilize the most-hindered rotamer of the (S)-tyrosinato side group in bis[(S)-tyrosinato](diamine)cobalt(III) complexes: An NMR spectroscopic and DFT study. in European Journal of Inorganic Chemistry
Wiley-V C H Verlag Gmbh, Weinheim.(15), 3172-3178.
https://doi.org/10.1002/ejic.200400873

Miodragović Đenana U., Vitnik Z, Milosavljević SM, Malinar M, Juranić IO. NH...pi interactions stabilize the most-hindered rotamer of the (S)-tyrosinato side group in bis[(S)-tyrosinato](diamine)cobalt(III) complexes: An NMR spectroscopic and DFT study. in European Journal of Inorganic Chemistry. 2005;(15):3172-3178.
doi:10.1002/ejic.200400873 .

Miodragović Đenana U., Vitnik, ZJ, Milosavljević, Slobodan M., Malinar, M.J., Juranić, Ivan O., "NH...pi interactions stabilize the most-hindered rotamer of the (S)-tyrosinato side group in bis[(S)-tyrosinato](diamine)cobalt(III) complexes: An NMR spectroscopic and DFT study" in European Journal of Inorganic Chemistry, no. 15 (2005):3172-3178,
https://doi.org/10.1002/ejic.200400873 . .

TY  - JOUR
AU  - Miodragović Đenana U.
AU  - Miodragović, Zoran
AU  - Skala, D
AU  - Malinar, M.J.
AU  - Minić, Dragica M.
AU  - Anđelković, Katarina K.
PY  - 2005
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/730
AB  - Thermal properties of (1,2-diaminoethane)bis(S-tyrosinato)cobalt(III) complex diastereomers are investigated by means of TG technique in 293-873 K temperature range. This is a first thermal study of [Co(S-aa)(2)en](+) (S-aa = anion of S-amino acid; en = 1,2-diaminoethane) complex diastereomers. It is shown that thermal decompositions of these complexes are multi-step degradation processes, which in some cases can be satisfactory separated into individual steps, depending on the molecular symmetry. It is proposed that the degradation processes occur with cleavage of the side chain of one S-tyrosinato ligand, followed by the cleavage of the second side chain by further heating. The proposed pathways of decomposition are in accordance with results of thermal degradation of noncoordinated S-tyrosine [F. Rodante, G. Marrosu, G. Catalani, Thermochim. Acta 194 (1992) 197-213]. In the case of diastereomers which crystallize with water molecules, the departure of both hygroscopic and crystal water occurs before. The corresponding kinetic and thermodynamic parameters of some processes were determined. (c) 2004 Elsevier B.V. All rights reserved.
PB  - Elsevier Science Bv, Amsterdam
T2  - Thermochimica Acta
T1  - Mixed cobalt(III) complexes with aromatic amino acids and diamine - Part V. Thermal investigation of (1,2-diaminoethane)bis(S-tyrosinato)cobalt(III) complex diastereomers
VL  - 436
IS  - 1-2
SP  - 90
EP  - 95
DO  - 10.1016/j.tca.2004.07.007
ER  - 

@article{
author = "Miodragović Đenana U. and Miodragović, Zoran and Skala, D and Malinar, M.J. and Minić, Dragica M. and Anđelković, Katarina K.",
year = "2005",
abstract = "Thermal properties of (1,2-diaminoethane)bis(S-tyrosinato)cobalt(III) complex diastereomers are investigated by means of TG technique in 293-873 K temperature range. This is a first thermal study of [Co(S-aa)(2)en](+) (S-aa = anion of S-amino acid; en = 1,2-diaminoethane) complex diastereomers. It is shown that thermal decompositions of these complexes are multi-step degradation processes, which in some cases can be satisfactory separated into individual steps, depending on the molecular symmetry. It is proposed that the degradation processes occur with cleavage of the side chain of one S-tyrosinato ligand, followed by the cleavage of the second side chain by further heating. The proposed pathways of decomposition are in accordance with results of thermal degradation of noncoordinated S-tyrosine [F. Rodante, G. Marrosu, G. Catalani, Thermochim. Acta 194 (1992) 197-213]. In the case of diastereomers which crystallize with water molecules, the departure of both hygroscopic and crystal water occurs before. The corresponding kinetic and thermodynamic parameters of some processes were determined. (c) 2004 Elsevier B.V. All rights reserved.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Thermochimica Acta",
title = "Mixed cobalt(III) complexes with aromatic amino acids and diamine - Part V. Thermal investigation of (1,2-diaminoethane)bis(S-tyrosinato)cobalt(III) complex diastereomers",
volume = "436",
number = "1-2",
pages = "90-95",
doi = "10.1016/j.tca.2004.07.007"
}

Miodragović Đenana U., Miodragović, Z., Skala, D., Malinar, M.J., Minić, D. M.,& Anđelković, K. K.. (2005). Mixed cobalt(III) complexes with aromatic amino acids and diamine - Part V. Thermal investigation of (1,2-diaminoethane)bis(S-tyrosinato)cobalt(III) complex diastereomers. in Thermochimica Acta
Elsevier Science Bv, Amsterdam., 436(1-2), 90-95.
https://doi.org/10.1016/j.tca.2004.07.007

Miodragović Đenana U., Miodragović Z, Skala D, Malinar M, Minić DM, Anđelković KK. Mixed cobalt(III) complexes with aromatic amino acids and diamine - Part V. Thermal investigation of (1,2-diaminoethane)bis(S-tyrosinato)cobalt(III) complex diastereomers. in Thermochimica Acta. 2005;436(1-2):90-95.
doi:10.1016/j.tca.2004.07.007 .

Miodragović Đenana U., Miodragović, Zoran, Skala, D, Malinar, M.J., Minić, Dragica M., Anđelković, Katarina K., "Mixed cobalt(III) complexes with aromatic amino acids and diamine - Part V. Thermal investigation of (1,2-diaminoethane)bis(S-tyrosinato)cobalt(III) complex diastereomers" in Thermochimica Acta, 436, no. 1-2 (2005):90-95,
https://doi.org/10.1016/j.tca.2004.07.007 . .

TY  - JOUR
AU  - Miodragović Đenana U.
AU  - Malinar, M.J.
AU  - Milosavljević, Slobodan M.
AU  - Zarić, Snežana D.
AU  - Vucelic, D
AU  - Celap, MB
PY  - 2002
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/493
AB  - Two diastereomers of bis(1,3-diaminopropane)(S-phenylalaninato)cobalt(III) were prepared by reaction of S-phenylalanine with carbonatobis(1,3-diaminopropane)cobalt(III). The diastereomers were separated on an optically active Sephadex QAE column and their absolute configurations assigned by means of circular dichroism. In addition, H-1 NMR spectra of the diastereomers were analyzed in terms of the population of the three predominant rotamers of the coordinated S-phenylalaninato ligand. One out of 24 theoretically possible diastereomers of the dinuclear species di-mu-hydroxo-tetrakis(S-phenylalaninato)dicobalt(III) was obtained by direct synthesis and its absolute configuration deduced from CD spectra.
PB  - Taylor & Francis Ltd, Abingdon
T2  - Journal of Coordination Chemistry
T1  - Synthesis and absolute configuration of novel mono- and dinuclear cobalt(III) complexes containing S-phenylalanine
VL  - 55
IS  - 5
SP  - 517
EP  - 526
DO  - 10.1080/00958970290020829
ER  - 

@article{
author = "Miodragović Đenana U. and Malinar, M.J. and Milosavljević, Slobodan M. and Zarić, Snežana D. and Vucelic, D and Celap, MB",
year = "2002",
abstract = "Two diastereomers of bis(1,3-diaminopropane)(S-phenylalaninato)cobalt(III) were prepared by reaction of S-phenylalanine with carbonatobis(1,3-diaminopropane)cobalt(III). The diastereomers were separated on an optically active Sephadex QAE column and their absolute configurations assigned by means of circular dichroism. In addition, H-1 NMR spectra of the diastereomers were analyzed in terms of the population of the three predominant rotamers of the coordinated S-phenylalaninato ligand. One out of 24 theoretically possible diastereomers of the dinuclear species di-mu-hydroxo-tetrakis(S-phenylalaninato)dicobalt(III) was obtained by direct synthesis and its absolute configuration deduced from CD spectra.",
publisher = "Taylor & Francis Ltd, Abingdon",
journal = "Journal of Coordination Chemistry",
title = "Synthesis and absolute configuration of novel mono- and dinuclear cobalt(III) complexes containing S-phenylalanine",
volume = "55",
number = "5",
pages = "517-526",
doi = "10.1080/00958970290020829"
}

Miodragović Đenana U., Malinar, M.J., Milosavljević, S. M., Zarić, S. D., Vucelic, D.,& Celap, M.. (2002). Synthesis and absolute configuration of novel mono- and dinuclear cobalt(III) complexes containing S-phenylalanine. in Journal of Coordination Chemistry
Taylor & Francis Ltd, Abingdon., 55(5), 517-526.
https://doi.org/10.1080/00958970290020829

Miodragović Đenana U., Malinar M, Milosavljević SM, Zarić SD, Vucelic D, Celap M. Synthesis and absolute configuration of novel mono- and dinuclear cobalt(III) complexes containing S-phenylalanine. in Journal of Coordination Chemistry. 2002;55(5):517-526.
doi:10.1080/00958970290020829 .

Miodragović Đenana U., Malinar, M.J., Milosavljević, Slobodan M., Zarić, Snežana D., Vucelic, D, Celap, MB, "Synthesis and absolute configuration of novel mono- and dinuclear cobalt(III) complexes containing S-phenylalanine" in Journal of Coordination Chemistry, 55, no. 5 (2002):517-526,
https://doi.org/10.1080/00958970290020829 . .

TY  - JOUR
AU  - Miodragović Đenana U.
AU  - Milosavljević, Slobodan M.
AU  - Malinar, M.J.
AU  - Celap, MB
AU  - Todorović, Nevena M.
AU  - Juranić, N.
PY  - 2002
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/537
AB  - Rotamer population of S-tyrosinato and S-phenylalaninato ligands side groups in diastereomers of (1,2-diaminoethane)bis(S-aminocarboxylato)cobalt(III) complexes is calculated by vicinal alpha and beta proton coupling constant analysis. The effect of noncovalent intra- and interligand interactions on the population of rotamers in D2O solution is discussed. It has been established that in all the complexes investigated the most abundant is rotamer t, in which aromatic voluminous moiety and carboxylic group are in an anti position. In almost all complexes the lowest content is of rotamer g, in which these two groups are in the nearest position. Relatively high population of rotamer b in complex 5 tyr, in spite of high steric hindrances, is due to intra- and interligand NH... pi interactions.
PB  - Taylor & Francis Ltd, Abingdon
T2  - Enantiomer
T1  - Mixed cobalt(III) complexes with aromatic amino acids and diamine. Part IV. Influence of noncovalent intraand interligand interactions on rotamer population of the S-phenylalaninato and S-tyrosinato side groups in (1,2-diaminoethane)bis(S-aminocarboxylato
VL  - 7
IS  - 6
SP  - 375
EP  - 382
DO  - 10.1080/10242430215714
ER  - 

@article{
author = "Miodragović Đenana U. and Milosavljević, Slobodan M. and Malinar, M.J. and Celap, MB and Todorović, Nevena M. and Juranić, N.",
year = "2002",
abstract = "Rotamer population of S-tyrosinato and S-phenylalaninato ligands side groups in diastereomers of (1,2-diaminoethane)bis(S-aminocarboxylato)cobalt(III) complexes is calculated by vicinal alpha and beta proton coupling constant analysis. The effect of noncovalent intra- and interligand interactions on the population of rotamers in D2O solution is discussed. It has been established that in all the complexes investigated the most abundant is rotamer t, in which aromatic voluminous moiety and carboxylic group are in an anti position. In almost all complexes the lowest content is of rotamer g, in which these two groups are in the nearest position. Relatively high population of rotamer b in complex 5 tyr, in spite of high steric hindrances, is due to intra- and interligand NH... pi interactions.",
publisher = "Taylor & Francis Ltd, Abingdon",
journal = "Enantiomer",
title = "Mixed cobalt(III) complexes with aromatic amino acids and diamine. Part IV. Influence of noncovalent intraand interligand interactions on rotamer population of the S-phenylalaninato and S-tyrosinato side groups in (1,2-diaminoethane)bis(S-aminocarboxylato",
volume = "7",
number = "6",
pages = "375-382",
doi = "10.1080/10242430215714"
}

Miodragović Đenana U., Milosavljević, S. M., Malinar, M.J., Celap, M., Todorović, N. M.,& Juranić, N.. (2002). Mixed cobalt(III) complexes with aromatic amino acids and diamine. Part IV. Influence of noncovalent intraand interligand interactions on rotamer population of the S-phenylalaninato and S-tyrosinato side groups in (1,2-diaminoethane)bis(S-aminocarboxylato. in Enantiomer
Taylor & Francis Ltd, Abingdon., 7(6), 375-382.
https://doi.org/10.1080/10242430215714

Miodragović Đenana U., Milosavljević SM, Malinar M, Celap M, Todorović NM, Juranić N. Mixed cobalt(III) complexes with aromatic amino acids and diamine. Part IV. Influence of noncovalent intraand interligand interactions on rotamer population of the S-phenylalaninato and S-tyrosinato side groups in (1,2-diaminoethane)bis(S-aminocarboxylato. in Enantiomer. 2002;7(6):375-382.
doi:10.1080/10242430215714 .

Miodragović Đenana U., Milosavljević, Slobodan M., Malinar, M.J., Celap, MB, Todorović, Nevena M., Juranić, N., "Mixed cobalt(III) complexes with aromatic amino acids and diamine. Part IV. Influence of noncovalent intraand interligand interactions on rotamer population of the S-phenylalaninato and S-tyrosinato side groups in (1,2-diaminoethane)bis(S-aminocarboxylato" in Enantiomer, 7, no. 6 (2002):375-382,
https://doi.org/10.1080/10242430215714 . .

TY  - JOUR
AU  - Miodragović Đenana U.
AU  - Bogdanović, Goran A.
AU  - Milosavljević, Slobodan M.
AU  - Malinar, M.J.
AU  - Celap, MB
AU  - Spasojevic-de Bire, A
AU  - Macura, S.
AU  - Juranić, N.
PY  - 2001
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/476
AB  - In the reaction of trans-[CoCl2(en)(2)](+) with L-tyrosine all six theoretically possible diastereomers of the (1,2-diaminoethane)bis(L-tyrosinato)cobalt(III) complex were formed. The following five were isolated: Delta -trans(O); and Lambda- and Delta -C-2-cis(O) and Lambda- and Delta -C-1-cis(O) diastereomers, while the Delta -trans(O) diastereomer was only detected in the corresponding eluate. Separation of the obtained diastereomers was performed by chromatography on a Dowex 1 x 4 column. Characterization of the isolated diastereomers was carried out by means of elemental analysis, electronic absorption, circular dichroic, H-1 and C-13 NMR spectra, and by x-ray crystal structure analysis in the case of the Delta -C-1-cis(O) diastereomer. We established the general rule of preference of diasteromers formation in complexes of [Co(L-aa)(2)diamine](+) (L-aa = L-amino acid anion; diamine = 1,2-diaminoethane or 1,3-diaminopropane) type.
PB  - Gordon Breach Publishing, Taylor & Francis Group, Philadelphia
T2  - Enantiomer
T1  - Mixed cobalt(III) complexes with aromatic amino acids and diamine. Part II. Synthesis and configuration of (1,2-diaminoethane)bis(L-tyrosinato)-cobalt(III)complex diastereomers. The crystal structure of the Delta-C-1-cis(O) diastereomer
VL  - 6
IS  - 5
SP  - 299
EP  - 308
UR  - https://hdl.handle.net/21.15107/rcub_cherry_476
ER  - 

@article{
author = "Miodragović Đenana U. and Bogdanović, Goran A. and Milosavljević, Slobodan M. and Malinar, M.J. and Celap, MB and Spasojevic-de Bire, A and Macura, S. and Juranić, N.",
year = "2001",
abstract = "In the reaction of trans-[CoCl2(en)(2)](+) with L-tyrosine all six theoretically possible diastereomers of the (1,2-diaminoethane)bis(L-tyrosinato)cobalt(III) complex were formed. The following five were isolated: Delta -trans(O); and Lambda- and Delta -C-2-cis(O) and Lambda- and Delta -C-1-cis(O) diastereomers, while the Delta -trans(O) diastereomer was only detected in the corresponding eluate. Separation of the obtained diastereomers was performed by chromatography on a Dowex 1 x 4 column. Characterization of the isolated diastereomers was carried out by means of elemental analysis, electronic absorption, circular dichroic, H-1 and C-13 NMR spectra, and by x-ray crystal structure analysis in the case of the Delta -C-1-cis(O) diastereomer. We established the general rule of preference of diasteromers formation in complexes of [Co(L-aa)(2)diamine](+) (L-aa = L-amino acid anion; diamine = 1,2-diaminoethane or 1,3-diaminopropane) type.",
publisher = "Gordon Breach Publishing, Taylor & Francis Group, Philadelphia",
journal = "Enantiomer",
title = "Mixed cobalt(III) complexes with aromatic amino acids and diamine. Part II. Synthesis and configuration of (1,2-diaminoethane)bis(L-tyrosinato)-cobalt(III)complex diastereomers. The crystal structure of the Delta-C-1-cis(O) diastereomer",
volume = "6",
number = "5",
pages = "299-308",
url = "https://hdl.handle.net/21.15107/rcub_cherry_476"
}

Miodragović Đenana U., Bogdanović, G. A., Milosavljević, S. M., Malinar, M.J., Celap, M., Spasojevic-de Bire, A., Macura, S.,& Juranić, N.. (2001). Mixed cobalt(III) complexes with aromatic amino acids and diamine. Part II. Synthesis and configuration of (1,2-diaminoethane)bis(L-tyrosinato)-cobalt(III)complex diastereomers. The crystal structure of the Delta-C-1-cis(O) diastereomer. in Enantiomer
Gordon Breach Publishing, Taylor & Francis Group, Philadelphia., 6(5), 299-308.
https://hdl.handle.net/21.15107/rcub_cherry_476

Miodragović Đenana U., Bogdanović GA, Milosavljević SM, Malinar M, Celap M, Spasojevic-de Bire A, Macura S, Juranić N. Mixed cobalt(III) complexes with aromatic amino acids and diamine. Part II. Synthesis and configuration of (1,2-diaminoethane)bis(L-tyrosinato)-cobalt(III)complex diastereomers. The crystal structure of the Delta-C-1-cis(O) diastereomer. in Enantiomer. 2001;6(5):299-308.
https://hdl.handle.net/21.15107/rcub_cherry_476 .

Miodragović Đenana U., Bogdanović, Goran A., Milosavljević, Slobodan M., Malinar, M.J., Celap, MB, Spasojevic-de Bire, A, Macura, S., Juranić, N., "Mixed cobalt(III) complexes with aromatic amino acids and diamine. Part II. Synthesis and configuration of (1,2-diaminoethane)bis(L-tyrosinato)-cobalt(III)complex diastereomers. The crystal structure of the Delta-C-1-cis(O) diastereomer" in Enantiomer, 6, no. 5 (2001):299-308,
https://hdl.handle.net/21.15107/rcub_cherry_476 .

TY  - JOUR
AU  - Milojković-Opsenica, Dušanka
AU  - Malinar, M.J.
AU  - Tešić, Živoslav Lj.
PY  - 1999
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/385
AB  - The effect of the chelate ring size of diamine Co(III) complexes under salting-out thin-layer chromatography (TLC) conditions was investigated. For that purpose, 16 neutral and cationic complexes containing from five- to seven-membered diamine chelate rings were chromatographed on the thin layers of silica gel, cellulose and polyacrylonitrile sorbents. Six aqueous solutions of ammonium sulphate at various concentrations were used as solvent systems. In all of the instances studied, it was established that hR(F) values decrease with increasing ring size. It was also found that the R-M Values obtained were a linear function; on the one side, salt concentrations in the chromatographic solvent systems used, and on the other side the diamine chelate ring size. To explain these results, a mechanism based on hydrophobic interaction between the sorbend and sorbent is proposed. (C) 1999 Elsevier Science B.V. All rights reserved.
PB  - Elsevier Science Bv, Amsterdam
T2  - Journal of Chromatography A
T1  - Effect of the chelate ring size of diamine-Co(III) complexes on their hR(F) values obtained under salting-out thin-layer chromatography conditions
VL  - 847
IS  - 1-2
SP  - 291
EP  - 296
DO  - 10.1016/S0021-9673(99)00242-3
ER  - 

@article{
author = "Milojković-Opsenica, Dušanka and Malinar, M.J. and Tešić, Živoslav Lj.",
year = "1999",
abstract = "The effect of the chelate ring size of diamine Co(III) complexes under salting-out thin-layer chromatography (TLC) conditions was investigated. For that purpose, 16 neutral and cationic complexes containing from five- to seven-membered diamine chelate rings were chromatographed on the thin layers of silica gel, cellulose and polyacrylonitrile sorbents. Six aqueous solutions of ammonium sulphate at various concentrations were used as solvent systems. In all of the instances studied, it was established that hR(F) values decrease with increasing ring size. It was also found that the R-M Values obtained were a linear function; on the one side, salt concentrations in the chromatographic solvent systems used, and on the other side the diamine chelate ring size. To explain these results, a mechanism based on hydrophobic interaction between the sorbend and sorbent is proposed. (C) 1999 Elsevier Science B.V. All rights reserved.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Journal of Chromatography A",
title = "Effect of the chelate ring size of diamine-Co(III) complexes on their hR(F) values obtained under salting-out thin-layer chromatography conditions",
volume = "847",
number = "1-2",
pages = "291-296",
doi = "10.1016/S0021-9673(99)00242-3"
}

Milojković-Opsenica, D., Malinar, M.J.,& Tešić, Ž. Lj.. (1999). Effect of the chelate ring size of diamine-Co(III) complexes on their hR(F) values obtained under salting-out thin-layer chromatography conditions. in Journal of Chromatography A
Elsevier Science Bv, Amsterdam., 847(1-2), 291-296.
https://doi.org/10.1016/S0021-9673(99)00242-3

Milojković-Opsenica D, Malinar M, Tešić ŽL. Effect of the chelate ring size of diamine-Co(III) complexes on their hR(F) values obtained under salting-out thin-layer chromatography conditions. in Journal of Chromatography A. 1999;847(1-2):291-296.
doi:10.1016/S0021-9673(99)00242-3 .

Milojković-Opsenica, Dušanka, Malinar, M.J., Tešić, Živoslav Lj., "Effect of the chelate ring size of diamine-Co(III) complexes on their hR(F) values obtained under salting-out thin-layer chromatography conditions" in Journal of Chromatography A, 847, no. 1-2 (1999):291-296,
https://doi.org/10.1016/S0021-9673(99)00242-3 . .

TY  - JOUR
AU  - Miodragović, Zoran
AU  - Vuckovic, G
AU  - Sovilj, Sofija P.
AU  - Manojlović, Dragan D.
AU  - Malinar, M.J.
PY  - 1998
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/396
AB  - Four new Cu(II) and Co(II) complexes having an octaazamacrocyclic ligand derived from cyclam, N,N'N,",N'''-tetrakis(2-pyridylmethyl)-1,4,8,11-tetraazacyclotetradecane, with either an mu-carbonato, oxalato or malonato as the additional ligand were isolated and investigated by elemental analysis, electronic and IR spectroscopy, as well as molar conductivity, magnetic and cyclic voltammetry (CV) measurements. Their microbiological activity was also tested. Binuclear or tetranuclear structures, depending on the bridging ligand and metal ion, was proposed.
PB  - Serbian Chemical Soc, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Carbonate, oxalato and malonato bridged Cu(II) and Co(II) complexes with an octaazamacrocyclic ligand
VL  - 63
IS  - 10
SP  - 781
EP  - 791
UR  - https://hdl.handle.net/21.15107/rcub_cherry_396
ER  - 

@article{
author = "Miodragović, Zoran and Vuckovic, G and Sovilj, Sofija P. and Manojlović, Dragan D. and Malinar, M.J.",
year = "1998",
abstract = "Four new Cu(II) and Co(II) complexes having an octaazamacrocyclic ligand derived from cyclam, N,N'N,",N'''-tetrakis(2-pyridylmethyl)-1,4,8,11-tetraazacyclotetradecane, with either an mu-carbonato, oxalato or malonato as the additional ligand were isolated and investigated by elemental analysis, electronic and IR spectroscopy, as well as molar conductivity, magnetic and cyclic voltammetry (CV) measurements. Their microbiological activity was also tested. Binuclear or tetranuclear structures, depending on the bridging ligand and metal ion, was proposed.",
publisher = "Serbian Chemical Soc, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Carbonate, oxalato and malonato bridged Cu(II) and Co(II) complexes with an octaazamacrocyclic ligand",
volume = "63",
number = "10",
pages = "781-791",
url = "https://hdl.handle.net/21.15107/rcub_cherry_396"
}

Miodragović, Z., Vuckovic, G., Sovilj, S. P., Manojlović, D. D.,& Malinar, M.J.. (1998). Carbonate, oxalato and malonato bridged Cu(II) and Co(II) complexes with an octaazamacrocyclic ligand. in Journal of the Serbian Chemical Society
Serbian Chemical Soc, Belgrade., 63(10), 781-791.
https://hdl.handle.net/21.15107/rcub_cherry_396

Miodragović Z, Vuckovic G, Sovilj SP, Manojlović DD, Malinar M. Carbonate, oxalato and malonato bridged Cu(II) and Co(II) complexes with an octaazamacrocyclic ligand. in Journal of the Serbian Chemical Society. 1998;63(10):781-791.
https://hdl.handle.net/21.15107/rcub_cherry_396 .

Miodragović, Zoran, Vuckovic, G, Sovilj, Sofija P., Manojlović, Dragan D., Malinar, M.J., "Carbonate, oxalato and malonato bridged Cu(II) and Co(II) complexes with an octaazamacrocyclic ligand" in Journal of the Serbian Chemical Society, 63, no. 10 (1998):781-791,
https://hdl.handle.net/21.15107/rcub_cherry_396 .

TY  - JOUR
AU  - Malinar, M.J.
AU  - Miodragović Đenana U.
AU  - Milosavljevic, S
AU  - Celap, MB
AU  - Vucelic, D
PY  - 1998
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/402
AB  - Four out of six theoretically possible isomers of the (1,3-diaminopropane)bis(S-tyrosinato)cobalt(III) complex, having the cis(O) configuration, were isolated, and the trans(O) isomer was only defined in the eluate. The isomers were separated on an optically active Sephadex QAE column. Geometrical and absolute configurations of the isomers were determined by electronic absorption, circular dichroic and H-1 NMR spectra. The effect of the aromatic side group of the coordinated S-tyrosinato ligand on the stereoselective formation of the obtained isomers was examined.
PB  - Gordon Breach Sci Publ Ltd, Reading
T2  - Enantiomer
T1  - Mixed cobalt(III) complexes with S-tyrosine and 1,3-diaminopropane
VL  - 3
IS  - 4-5
SP  - 349
EP  - 356
UR  - https://hdl.handle.net/21.15107/rcub_cherry_402
ER  - 

@article{
author = "Malinar, M.J. and Miodragović Đenana U. and Milosavljevic, S and Celap, MB and Vucelic, D",
year = "1998",
abstract = "Four out of six theoretically possible isomers of the (1,3-diaminopropane)bis(S-tyrosinato)cobalt(III) complex, having the cis(O) configuration, were isolated, and the trans(O) isomer was only defined in the eluate. The isomers were separated on an optically active Sephadex QAE column. Geometrical and absolute configurations of the isomers were determined by electronic absorption, circular dichroic and H-1 NMR spectra. The effect of the aromatic side group of the coordinated S-tyrosinato ligand on the stereoselective formation of the obtained isomers was examined.",
publisher = "Gordon Breach Sci Publ Ltd, Reading",
journal = "Enantiomer",
title = "Mixed cobalt(III) complexes with S-tyrosine and 1,3-diaminopropane",
volume = "3",
number = "4-5",
pages = "349-356",
url = "https://hdl.handle.net/21.15107/rcub_cherry_402"
}

Malinar, M.J., Miodragović Đenana U., Milosavljevic, S., Celap, M.,& Vucelic, D.. (1998). Mixed cobalt(III) complexes with S-tyrosine and 1,3-diaminopropane. in Enantiomer
Gordon Breach Sci Publ Ltd, Reading., 3(4-5), 349-356.
https://hdl.handle.net/21.15107/rcub_cherry_402

Malinar M, Miodragović Đenana U., Milosavljevic S, Celap M, Vucelic D. Mixed cobalt(III) complexes with S-tyrosine and 1,3-diaminopropane. in Enantiomer. 1998;3(4-5):349-356.
https://hdl.handle.net/21.15107/rcub_cherry_402 .

Malinar, M.J., Miodragović Đenana U., Milosavljevic, S, Celap, MB, Vucelic, D, "Mixed cobalt(III) complexes with S-tyrosine and 1,3-diaminopropane" in Enantiomer, 3, no. 4-5 (1998):349-356,
https://hdl.handle.net/21.15107/rcub_cherry_402 .

TY  - JOUR
AU  - Juranić, N.
AU  - Malinar, M.J.
AU  - Radivojša, P.N.
AU  - Zarić, Snežana D.
AU  - Vučelić, D.
AU  - Vučić, M.
AU  - Ćelap, M.B.
PY  - 1988
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/58
AB  - In the cis(NO2),trans(NH2)-bis(aminocarboxylato) dinitrocobalt/ate(III) isomers, containing glycinato, S-alaninato, S-n-valinato, S-valinato, S-n-leucinato, S-leucinato, S-i-leucinato and S-arginine ligands, respectively, it was found that in the Δ-isomers circular dichroic spectra are determined by the configurational contribution to the optical activity. This is connected in the case of optically active ligands with the chair conformation of the chelate rings and the equatorial position of the ring side group. In the Δ-isomers, λ- conformation of the aminocarboxylato chelate rings and the axial position of the ring side groups induce a considerable contribution to the optical activity, which varies from complex to complex. NMR spectroscopy showed that these variations are related to small changes in the chelate ring conformation in such a way that a more axial position of a ring side group induces a larger contribution. The λ-conformation of a S-aminocarboxylato chelate ring induces a large negative contribution to the circular dichroism of the investigated complexes. © 1988.
T2  - Polyhedron
T1  - Investigation of the effect of the aminocarboxylato chelate conformation on the optical activity of the cis(NO2),trans(NH2) -bis(aminocarboxylato)dinitrocobalt/ate(III) isomers
VL  - 7
IS  - 13
SP  - 1153
EP  - 1158
DO  - 10.1016/S0277-5387(00)81203-6
ER  - 

@article{
author = "Juranić, N. and Malinar, M.J. and Radivojša, P.N. and Zarić, Snežana D. and Vučelić, D. and Vučić, M. and Ćelap, M.B.",
year = "1988",
abstract = "In the cis(NO2),trans(NH2)-bis(aminocarboxylato) dinitrocobalt/ate(III) isomers, containing glycinato, S-alaninato, S-n-valinato, S-valinato, S-n-leucinato, S-leucinato, S-i-leucinato and S-arginine ligands, respectively, it was found that in the Δ-isomers circular dichroic spectra are determined by the configurational contribution to the optical activity. This is connected in the case of optically active ligands with the chair conformation of the chelate rings and the equatorial position of the ring side group. In the Δ-isomers, λ- conformation of the aminocarboxylato chelate rings and the axial position of the ring side groups induce a considerable contribution to the optical activity, which varies from complex to complex. NMR spectroscopy showed that these variations are related to small changes in the chelate ring conformation in such a way that a more axial position of a ring side group induces a larger contribution. The λ-conformation of a S-aminocarboxylato chelate ring induces a large negative contribution to the circular dichroism of the investigated complexes. © 1988.",
journal = "Polyhedron",
title = "Investigation of the effect of the aminocarboxylato chelate conformation on the optical activity of the cis(NO2),trans(NH2) -bis(aminocarboxylato)dinitrocobalt/ate(III) isomers",
volume = "7",
number = "13",
pages = "1153-1158",
doi = "10.1016/S0277-5387(00)81203-6"
}

Juranić, N., Malinar, M.J., Radivojša, P.N., Zarić, S. D., Vučelić, D., Vučić, M.,& Ćelap, M.B.. (1988). Investigation of the effect of the aminocarboxylato chelate conformation on the optical activity of the cis(NO2),trans(NH2) -bis(aminocarboxylato)dinitrocobalt/ate(III) isomers. in Polyhedron, 7(13), 1153-1158.
https://doi.org/10.1016/S0277-5387(00)81203-6

Juranić N, Malinar M, Radivojša P, Zarić SD, Vučelić D, Vučić M, Ćelap M. Investigation of the effect of the aminocarboxylato chelate conformation on the optical activity of the cis(NO2),trans(NH2) -bis(aminocarboxylato)dinitrocobalt/ate(III) isomers. in Polyhedron. 1988;7(13):1153-1158.
doi:10.1016/S0277-5387(00)81203-6 .

Juranić, N., Malinar, M.J., Radivojša, P.N., Zarić, Snežana D., Vučelić, D., Vučić, M., Ćelap, M.B., "Investigation of the effect of the aminocarboxylato chelate conformation on the optical activity of the cis(NO2),trans(NH2) -bis(aminocarboxylato)dinitrocobalt/ate(III) isomers" in Polyhedron, 7, no. 13 (1988):1153-1158,
https://doi.org/10.1016/S0277-5387(00)81203-6 . .