Nucleophilic Attack of Hydroxide on a MnV Oxo Complex: A Model of the O−O Bond Formation in the Oxygen Evolving Complex of Photosystem II

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• 作者：Yan Gao ; Torbjrn Å ; kermark ; Jianhui Liu ; Licheng Sun ; Bjrn Å ; kermark
• 刊名：Journal of the American Chemical Society
• 出版年：2009
• 出版时间：July 1, 2009
• 年：2009
• 卷：131
• 期：25
• 页码：8726-8727
• 全文大小：141K
• 年卷期：v.131,no.25(July 1, 2009)
• ISSN：1520-5126

文摘

A manganese(III) corrole complex, 1, has been synthesized and used to study a potential mechanism for oxidation of water to molecular oxygen. Oxidation by t-BuOOH gave the Mn^V═O complex 2. Addition of hydroxide led to release of oxygen via the Mn^IV complex 4 and regeneration of complex 1. It could be shown that the oxygen from ¹⁸O-labeled water was incorporated in both the formed molecular oxygen and the peroxy intermediate 4.