Thermal stability of meso-substituted metal corroles in inert and oxidative media
- Autores: Thao V.T.1, Karimov D.R.2,3, Guseinov S.S.2, Balantseva E.V.2, Berezin D.B.1
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Afiliações:
- Research Institute of Macroheterocyclic Compounds
- G. A. Krestov Institute of Solution Chemistry
- Ivanovo State Medical Academy
- Edição: Volume 90, Nº 3 (2016)
- Páginas: 517-521
- Seção: Chemical Thermodynamics and Thermochemistry
- URL: https://bakhtiniada.ru/0036-0244/article/view/167840
- DOI: https://doi.org/10.1134/S003602441603033X
- ID: 167840
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Resumo
The thermal stability of 5,10,15-triphenylcorrole as the simplest representative of meso-substituted corroles and its complexes with d-metals (Cu3+, Mn3+, Mn4+, Co3+, Co4+, and Zn2+) is studied for the first time via thermogravimetry in oxidizing and inert atmospheres. It is shown that corroles, both as free ligands and in the form of metal complexes, are less thermally stable than porphyrins with a similar structure. It is found that if the free ligands of porphyrins are thermally more stable with respect to thermal oxidation than d-metal complexes, the thermal stability of metal corroles can be both lower and higher than those of free ligands. It is concluded that the order of thermal stability of compounds MnCor < CoCor < H3Cor < ZnCorH < CuCor is reversed upon moving from an oxidizing to an inert medium. It is shown that corroles complexes with many d-metals (Co, Mn, and others) readily participate in extracoordination reactions with electron-donating solvents, e.g., DMF, as is indicated by spectrophotometry and thermogravimetry.
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Sobre autores
Vu Thao
Research Institute of Macroheterocyclic Compounds
Email: berezin@isuct.ru
Rússia, Ivanovo, 153000
D. Karimov
G. A. Krestov Institute of Solution Chemistry; Ivanovo State Medical Academy
Email: berezin@isuct.ru
Rússia, Ivanovo, 153045; Ivanovo, 153012
S. Guseinov
G. A. Krestov Institute of Solution Chemistry
Email: berezin@isuct.ru
Rússia, Ivanovo, 153045
E. Balantseva
G. A. Krestov Institute of Solution Chemistry
Email: berezin@isuct.ru
Rússia, Ivanovo, 153045
D. Berezin
Research Institute of Macroheterocyclic Compounds
Autor responsável pela correspondência
Email: berezin@isuct.ru
Rússia, Ivanovo, 153000
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