Synthetic studies of manganese-calcium complexes relevant to water oxidation catalysis in Photosystem II

Abstract

Sunlight is a clean and renewable source of energy and could be the ultimate way to solve the current energy problem. Nature converts and stores solar energy through the well-known photosynthesis process, where carbon dioxide and water are converted into carbohydrates and oxygen. During photosynthesis, the oxidation of water to release O2 is catalyzed by the oxygen-evolving complex (OEC) of photosystem II (PSII). The design of artificial catalysts for water oxidation represents a critical step in the conversion and storage of solar energy. The formation of Of{O bond during water oxidation in PSII has been proposed to occur from the nucleophilic attack of water or hydroxide on a high valent Mn=O species. The reaction between a Mn=O species and a Ca-bound water species will be reported.

Publication Title

ACS National Meeting Book of Abstracts

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