Kinetics of Oxidation of “Capped” Zinc Porphyrin Containing a 2,5-Dimethoxyphenylene “Cap” with Organic Peroxides in the Presence of Imidazole |
| |
| Authors: | S V Zaitseva S A Zdanovich O I Koifman |
| |
| Institution: | (1) Institute of Chemistry of Solutions, Russian Academy of Sciences, Ivanovo, Russia;(2) Ivanovo State University of Chemical Engineering, Ivanovo, Russia |
| |
| Abstract: | Oxidation of the zinc complex of “capped” 5,15-2,5-bis(2′-phenyleneoxymethyl)-1,4-dimethoxybenzene]-2,8,12,18-tetramethyl-3,7,13,17-tetrabutylporphyrin with organic peroxides in the presence of imidazole at 298 K results in complete breakdown of the complex. The nitrogen base exerts a significant effect on the rate of metal porphyrin oxidation. The kinetic parameters of the reaction were determined. The structures of the sterically strained metal porphyrin and intermediate products of its oxidation were optimized by PM3 calculations. A geometry analysis shows that the deformations of the macroring increase upon formation of the extra complex and its reaction with peroxides.__________Translated from Zhurnal Obshchei Khimii, Vol. 75, No. 5, 2005, pp. 847–853.Original Russian Text Copyright © 2005 by Zaitseva, Zdanovich, Koifman. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
