Preliminary communication

Kinetic Study of the Substitution of Pyridine by Cyanide in the bis(pyridine)cobalt(IIl)hematoporphyrin-IX: Distinguishing between the Id and D Mechanism

M. Biruš ; Department of Chemistry, Faculty of Pharmacy and Biochemistry, University of Zagreb, Zagreb, Croatia, Yugoslavia
M. Pribanić ; Department of Chemistry, Faculty of Pharmacy and Biochemistry, University of Zagreb, Zagreb, Croatia, Yugoslavia

Abstract

A kinetic study of the reaction between the cyanide ion and the bis(pyridine)cobalt(III)hematoporphyrin-IX complex to give
(CN)2cobalt(lll)hematoporphyrin-IX has shown that the axial
ligand substitution occurs by a purely dissociative (D but not la)
mechanism in chloroform involving predissociation to a ' five-co-
ordinate (pyridine)cobalt(lll)hematoporphyrin-IX complex.

Keywords

Hrčak ID:

196413

URI

https://hrcak.srce.hr/196413

Publication date:

25.3.1977.

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