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Synthesis of a [3Fe2S] Cluster with Low Redox Potential from [2Fe2S] Hydrogenase Models: Electrochemical and Photochemical Generation of Hydrogen
Author(s) -
Gao Weiming,
Sun Junliang,
Li Mingrun,
Åkermark Torbjörn,
Romare Kristina,
Sun Licheng,
Åkermark Björn
Publication year - 2011
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201000872
Subject(s) - chemistry , hydrogenase , redox , protonation , hydride , photochemistry , electron transfer , carbon monoxide , electrochemistry , hydrogen , cluster (spacecraft) , proton coupled electron transfer , excited state , inorganic chemistry , catalysis , ion , organic chemistry , electrode , physics , computer science , nuclear physics , programming language
In the attempted replacement of carbon monoxide by thebis(phosphane) dppv in a dinuclear [2Fe2S] complex, a trinuclear [3Fe2S] complex with two bis(phosphane) ligands was unexpectedly obtained. On protonation, this gave a bridged hydride complex with an unusually low potential for the reduction of protons to molecular hydrogen. The redox potential also appears sufficiently positive for direct electron transfer from an excited [Ru(bpy) 3 ] 2+ sensitizer.