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Updated: Sep 12, 2025

Preparation of Polyoxometalate-based Photo-responsive Membranes for the Photo-activation of Manganese Oxide Catalysts
Published on: August 7, 2018
Hydrogen Peroxide Mediated Oxidation of Manganese Carbonyls in Alkaline Solution
Claudia N Robison1, Madalyn Phan1, Leroy E Laverman1
1Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, California 93106, United States.
Abstract:
Reported are stopped-flow kinetics studies of the hydrogen peroxide reaction with the water-soluble manganese(I) carbonyl complex. fac-[Mn(CO)3(Br)(bpCO2)]2- (I, bpCO22- = 2,2'-bipyridine-4,4'-dicarboxylate dianion) in alkaline solution. In an earlier study, the H2O2 oxidation of I was shown to be accompanied by the release of more than two equivalents of carbon monoxide. The stopped-flow studies here confirm the strongly pH dependence of the reaction rate, and a revised mechanism for this kinetics behavior is proposed. The larger interest in these systems derives from evaluating redox mechanisms for CO delivery from metal-based carbon monoxide releasing moieties (CORMs) under physiologically relevant conditions.
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