title: Intermolecular electron transfer from photogenerated Ru(bpy)3+ to [2Fe2S] model complexes of the iron-only hydrogenase active site.
abstract: Visible light-driven intermolecular electron transfer was observed from a reduced species Ru(bpy)3+, photogenerated via a reductive quenching of the ruthenium photosensitizer by a diethyldithiocarbamate anion, to bioinspired [2Fe2S] model complexes of the iron-only hydrogenase active site. The results indicate that Ru(bpy)32+ can act as a photoactive functional model of the [4Fe4S] cluster, playing the role of an electron-transfer relay. The photogenerated FeIFe0 species, which is proposed to be a crucial intermediate for proton reduction catalyzed electrochemically by the [2Fe2S] complexes, gives promise in the light-driven dihydrogen evolution using diiron complexes as surrogates of noble platinum catalysts.
authors.affiliation: State Key Laboratory of Fine Chemicals, DUT-KTH Joint Education and Research Center on Molecular Devices, Dalian University of Technology, 116012 Dalian, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Na
authors.forename: Jingxi
authors.initials: J
authors.lastname: Pan
authors.forename: Mei
authors.initials: M
authors.lastname: Wang
authors.forename: Licheng
authors.initials: L
authors.lastname: Sun
mesh_terms: D015082:2,2'-Dipyridyl / Q000031:analogs & derivatives* / Q000737:chemistry / Q000528:radiation effects; D001665:Binding Sites; D002384:Catalysis; D018360:Crystallography, X-Ray; D004563:Electrochemistry; D004579:Electron Transport; D006859:Hydrogen / Q000737:chemistry; D006864:Hydrogenase / Q000737:chemistry*; D007506:Iron-Sulfur Proteins / Q000737:chemistry*; D007700:Kinetics; D008027:Light; D008956:Models, Chemical; D009942:Organometallic Compounds / Q000737:chemistry* / Q000528:radiation effects*; D010084:Oxidation-Reduction; D010984:Platinum / Q000737:chemistry; D013056:Spectrophotometry, Ultraviolet
chemical_list: D007506:Iron-Sulfur Proteins; D009942:Organometallic Compounds; C103599:bis(bipyridyl)ruthenium(II); D010984:Platinum; D015082:2,2'-Dipyridyl; D006859:Hydrogen; C118830:iron hydrogenase; D006864:Hydrogenase