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Excited-State Deprotonation and H/D Exchange of an Iridium Hydride Complex

Authors

  • Tomoyoshi Suenobu Dr.,

    1. Department of Material and Life Science, Graduate School of Engineering, Osaka University, CREST, Japan Science and Technology Corporation, 2-1 Yamada-oka Suita Osaka 565-0871, Japan, Fax: (+81) 6-6879-7370
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  • Dirk M. Guldi Prof. Dr.,

    1. Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, USA, Fax: (+1) 574-631-8068
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  • Seiji Ogo Dr.,

    1. Department of Material and Life Science, Graduate School of Engineering, Osaka University, CREST, Japan Science and Technology Corporation, 2-1 Yamada-oka Suita Osaka 565-0871, Japan, Fax: (+81) 6-6879-7370
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  • Shunichi Fukuzumi Prof. Dr.

    1. Department of Material and Life Science, Graduate School of Engineering, Osaka University, CREST, Japan Science and Technology Corporation, 2-1 Yamada-oka Suita Osaka 565-0871, Japan, Fax: (+81) 6-6879-7370
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  • This work was partially supported by Grants-in-Aid for Scientific Research on Priority Area (Nos. 13555247 and 14045249) from the Ministry of Education, Culture, Sports, Science and Technology, Japan, and the offices of Basic Energy Sciences of the US Department of Energy (contribution no. NDRL-4481 from the Notre Dame radiation laboratory. The authors thank the reviewers for their useful comments and suggestions.

Abstract

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Visible-light irradiation of the hexafluorophosphate salt of [Cp*IrIII(bpy)H]+ (1, Cp*=η5-C5Me5, bpy=2,2′-bipyridine) results in excited-state deprotonation to form the conjugate base [Cp*IrI(bpy)]. The H/D exchange reaction of 1 also occurs during photoirradiation of 1 in [D4]methanol in the steady state (see picture).

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