Mechanism of a one-photon two-electron process in photocatalytic hydrogen evolution from ascorbic acid with a cobalt chlorin complex

Chemical Communications : Chem Comm
Shoko AoiShunichi Fukuzumi

Abstract

A one-photon two-electron process was made possible in photocatalytic H2 evolution from ascorbic acid with a cobalt(II) chlorin complex [Co(II)(Ch)] via electron transfer from ascorbate to the excited state of [Ru(bpy)3](2+) followed by electron transfer from [Ru(bpy)3](+) to Co(II)(Ch) with proton to give the hydride complex, which reacts with proton to produce H2. [Co(III)(Ch)](+) was reduced by ascorbate to reproduce Co(II)(Ch).

References

Jul 5, 2005·Science·Richard A Kerr, Robert F Service
Nov 26, 2009·Accounts of Chemical Research·Jillian L DempseyHarry B Gray
Jul 16, 2014·Chemical Communications : Chem Comm·Ken KawanoKen Sakai
Sep 23, 2014·Dalton Transactions : an International Journal of Inorganic Chemistry·Elisa DepontiFranco Scandola
Sep 23, 2014·Journal of the American Chemical Society·Hongjin LvCraig L Hill
Dec 23, 2014·Current Opinion in Chemical Biology·Shunichi Fukuzumi

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