1. Chemical and Photochemical Water Oxidation Mediated by an Efficient Single-Site Ruthenium Catalyst.
- Author
-
Abdel-Magied AF, Shatskiy A, Liao RZ, Laine TM, Arafa WA, Siegbahn PE, Kärkäs MD, Åkermark B, and Johnston EV
- Subjects
- Catalysis, Models, Molecular, Molecular Conformation, Oxidation-Reduction, Quantum Theory, Photochemical Processes, Ruthenium chemistry, Water chemistry
- Abstract
Water oxidation is a fundamental step in artificial photosynthesis for solar fuels production. In this study, we report a single-site Ru-based water oxidation catalyst, housing a dicarboxylate-benzimidazole ligand, that mediates both chemical and light-driven oxidation of water efficiently under neutral conditions. The importance of the incorporation of the negatively charged ligand framework is manifested in the low redox potentials of the developed complex, which allows water oxidation to be driven by the mild one-electron oxidant [Ru(bpy)
3 ]3+ (bpy=2,2'-bipyridine). Furthermore, combined experimental and DFT studies provide insight into the mechanistic details of the catalytic cycle., (© 2016 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA.)- Published
- 2016
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