Mechanism of a one-photon two-electron process in photocatalytic hydrogen evolution from ascorbic acid with a cobalt chlorin complex.
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).
Department of Material and Life Science, Graduate School of Engineering, Osaka University, ALCA and SENTAN, Japan Science and Technology Agency (JST), Suita, Osaka 565-0871, Japan. fukuzumi@chem.eng.osaka-u.ac.jp.
Shoko
S
Aoi
Kentaro
K
Mase
Kei
K
Ohkubo
Shunichi
S
Fukuzumi