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Photocatalytic Oxidation of Organic Compounds in Water by Using Ruthenium(II)–Pyridylamine Complexes as Catalysts with High Efficiency and Selectivity

Authors

  • Shingo Ohzu,

    1. Department of Chemistry, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8571 (Japan)
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  • Dr. Tomoya Ishizuka,

    1. Department of Chemistry, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8571 (Japan)
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  • Yuichirou Hirai,

    1. Department of Material and Life Science, Graduate School of Engineering, Osaka University and ALCA (JST), 2-1 Yamada-oka, Suita, Osaka 565-0871 (Japan)
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  • Prof. Dr. Shunichi Fukuzumi,

    Corresponding author
    1. Department of Material and Life Science, Graduate School of Engineering, Osaka University and ALCA (JST), 2-1 Yamada-oka, Suita, Osaka 565-0871 (Japan)
    2. Department of Bioinspired Science, Ewha Womans University, Seoul 120-750 (Korea)
    • Department of Material and Life Science, Graduate School of Engineering, Osaka University and ALCA (JST), 2-1 Yamada-oka, Suita, Osaka 565-0871 (Japan)
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  • Prof. Dr. Takahiko Kojima

    Corresponding author
    1. Department of Chemistry, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8571 (Japan)
    • Department of Chemistry, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8571 (Japan)
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Abstract

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The photocatalytic oxidation of organic substrates such as alcohols was conducted in the presence of RuII–aqua complexes as oxidation catalysts, [RuII(bpy)3]2+ as a photosensitizer and electron mediator, and a CoIII complex as a sacrificial oxidant (see scheme). The catalytic systems exhibited high efficiency to achieve turnover numbers of over 8000.

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