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Photocatalytic Production of Hydrogen by Disproportionation of One-Electron-Reduced Rhodium and Iridium–Ruthenium Complexes in Water

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  • The support of two Grants-in-Aid (Nos. 20108010 and 21550061) and a Global COE program, “The Global Education and Research Center for Bio-Environmental Chemistry” from the Ministry of Education, Culture, Sports, Science, and Technology (Japan), and of KOSEF/MEST through WCU Project (R31-2008-000-10010-0) is gratefully acknowledged.

Abstract

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One at a time: A rhodium aqua complex and a heterodinuclear iridium–ruthenium complex (see picture) act as effective catalysts for the photocatalytic two-electron reduction of protons. Hydrogen is produced with the aid of a photosensitizer and an electron donor by disproportionation of the corresponding one-electron-reduced metal complexes.

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