Mechanistic Insights into Hydride-Transfer and Electron-Transfer Reactions by a Manganese (IV)− Oxo Porphyrin Complex

…, N Fujioka, H Kotani, K Ohkubo, YM Lee…

Index: Fukuzumi, Shunichi; Fujioka, Naofumi; Kotani, Hiroaki; Ohkubo, Kei; Lee, Yong-Min; Nam, Wonwoo Journal of the American Chemical Society, 2009 , vol. 131, # 47 p. 17127 - 17134

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Citation Number: 39

Abstract

Hydride transfer from dihydronicotinamide adenine dinucleotide (NADH) analogs to a manganese (IV)− oxo porphyrin complex,(TMP) MnIV (O)[TMP= 5, 10, 15, 20-tetrakis (2, 4, 6- trimethylphenyl) porphyrin], occurs via disproportionation of (TMP) MnIV (O) to [(TMP) MnIII]+ and [(TMP) MnV (O)]+ that acts as the actual hydride acceptor. In contrast, electron transfer from ferrocene derivatives to (TMP) MnIV (O) occurs directly to afford ferricenium ions and ...