Complex Formation of 5,10,15,20-Tetra(4-Chlorophenyl) Porphyrinate Zinc with 1,4-Diazabicyclo [2.2.2]Octane According to 1H NMR Spectroscopy Data in Benzene and Chloroform Solutions

Liquid Crystals and their Application
Russian Journal

Zhidkie kristally i ikh prakticheskoe ispol'zovanie

Жидкие кристаллы и их практическое использование

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Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2012, 3, 37—42.

Complex Formation of 5,10,15,20-Tetra(4-Chlorophenyl) Porphyrinate Zinc with 1,4-Diazabicyclo [2.2.2]Octane According to ¹H NMR Spectroscopy Data in Benzene and Chloroform Solutions

I. A. Khodov¹, G. A. Al'Per¹, V. A. Golubev¹, R. S. Kumeev¹, M. Yu. Nikiforov¹, A. V. Guryanov²

Author affiliations
¹G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences
Ivanovo, 153045 Russia Akademicheskaya St., 1.
E-mail: iakh@isc-ras.ru
²Ivanovo State University,
153025 Ivanovo, Ermak Str., 39

Abstract
The results of the study of the complexation of 5,10,15,20-tetra(4-chlorophenyl) porphyrinate zinc with 1.4-diazabicyclo(2.2.2)octane in chloroform-d and benzene-d₆ at different ratios of molar concentrations of porphyrinate and substrate by ¹H NMR spectroscopy and the spin-lattice relaxation time measurement (500 MHz) are presented.The dominant relaxation mechanism was established. The equilibrium constant for the complexation reaction was estimated.

Keywords: metal complex, NMR relaxation, 1.4-diazabicyclo(2.2.2)octane, 5,10,15,20-tetra(4-chlorophenyl)porphyrinate zinc

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