TY  - JOUR
AU  - Miodragović, Dj.U.
AU  - Miodragović, Zoran M.
AU  - Skala, Dejan
AU  - Malinar, Mijat J.
AU  - Minić, Dragica M.
AU  - Anđelković, Katarina
PY  - 2005
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5465
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.
PB  - Elsevier
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
EP  - 95
IS  - 1-2
SP  - 90
VL  - 436
DO  - 10.1016/j.tca.2004.07.007
ER  - 

@article{
author = "Miodragović, Dj.U. and Miodragović, Zoran M. and Skala, Dejan and Malinar, Mijat J. and Minić, Dragica M. and Anđelković, Katarina",
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.",
publisher = "Elsevier",
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",
pages = "95-90",
number = "1-2",
volume = "436",
doi = "10.1016/j.tca.2004.07.007"
}

Miodragović, Dj.U., Miodragović, Z. M., Skala, D., Malinar, M. J., Minić, D. M.,& Anđelković, 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., 436(1-2), 90-95.
https://doi.org/10.1016/j.tca.2004.07.007

Miodragović D, Miodragović ZM, Skala D, Malinar MJ, Minić DM, Anđelković 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. 2005;436(1-2):90-95.
doi:10.1016/j.tca.2004.07.007 .

Miodragović, Dj.U., Miodragović, Zoran M., Skala, Dejan, Malinar, Mijat J., Minić, Dragica M., Anđelković, Katarina, "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 . .