Kinetics of Oxidation of Cuprous Complexes of Substituted Phenanthroline and 2, 2’-Bipyridyl by Molecular Oxygen and by Hydrogen Peroxide in Aqueous Solution

Sara Goldstein, Gidon Czapski

Research output: Contribution to journalArticlepeer-review

57 Scopus citations

Abstract

The kinetics and the reaction mechanism of copper(I) complexes of 5-methyl-1, 10-phenanthroline, 5-chloro-1, 10-phenanthroline, 5-nitro-1, 10-phenanthroline, 2, 9-dimethyl-1, 10-phenanthroline, and 2, 2’-bipyridyl with oxygen and hydrogen peroxide have been investigated in aqueous solutions with use of the pulse radiolysis technique. The oxidation by 02is second order in the copper(I) complex, while the oxidation by H202is first order in the copper(I) complex. Both reactions are first order in oxidants. The kinetic results of the oxidation of copper(I) complexes by oxygen are interpreted by a mechanism that proceeds via a superoxide intermediate.

Original languageEnglish
Pages (from-to)1087-1092
Number of pages6
JournalInorganic Chemistry
Volume24
Issue number7
DOIs
StatePublished - Mar 1985

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