Six-coordinate nitrosyl complex of Co-meso-tetra-p-tolylporphyrin with a trans-1-methylimidazole ligand
- Authors: Hovhannisyan A.A.1, Kurtikyan T.S.1
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Affiliations:
- Molecule Structure Research Center, Scientific-Technological Center of Organic and Pharmaceutical Chemistry, National Academy of Sciences of the Republic of Armenia
- Issue: Vol 66, No 7 (2017)
- Pages: 1183-1186
- Section: Full Articles
- URL: https://journals.rcsi.science/1066-5285/article/view/240909
- DOI: https://doi.org/10.1007/s11172-017-1870-0
- ID: 240909
Cite item
Abstract
Electron absorption and Fourier-transform IR spectroscopy was used to determine that the reaction of 1-methylimidazole (1-MeIm) with a nitrosyl complex of meso-tetra-p-tolylporphyrinate cobalt (Co(TTP)(NO)) at 210—240 K led to the formation of the six-coordinate complex (1-MeIm)Co(TTP)(NO), which was stable at low temperatures both in the solid state and in a solution of toluene. Based on the temperature dependence of the equilibrium constants, the thermodynamic parameters of complexation were calculated, which indicated a weak binding of the 1-methylimidazole ligand with the Co-porphyrin nitrosyl complex.
About the authors
A. A. Hovhannisyan
Molecule Structure Research Center, Scientific-Technological Center of Organic and Pharmaceutical Chemistry, National Academy of Sciences of the Republic of Armenia
Author for correspondence.
Email: ahovhan@gmail.com
Armenia, 26 prosp. Azatutyan, Yerevan, 0014
T. S. Kurtikyan
Molecule Structure Research Center, Scientific-Technological Center of Organic and Pharmaceutical Chemistry, National Academy of Sciences of the Republic of Armenia
Email: ahovhan@gmail.com
Armenia, 26 prosp. Azatutyan, Yerevan, 0014