{1,1′‐(Dimethylsilylene)bis[methanechalcogenolato]}diiron Complexes [2Fe2E(Si)] (E=S, Se, Te) – [FeFe] Hydrogenase Models
作者： Ulf-Peter Apfel , Helmar Görls , Greg A. N. Felton , Dennis H. Evans , Richard S. Glass
关键词: Hydrogenase 、 Crystallography 、 X-ray crystallography 、 Infrared spectroscopy 、 Toluene 、 Hydrogen 、 Mass spectrometry 、 Electrocatalyst 、 Chemistry 、 Dimethylsilane 、 Photochemistry
摘要: (Bis-selenolato) and (bis-tellurolato)diiron complexes [2Fe2E(Si)] were prepared compared with the known (bis-thiolato)diiron complex A to assess their ability produce hydrogen from protons. Treatment of [Fe3(CO)12] 4,4-dimethyl-1,2,4-diselenasilolane (1) in boiling toluene afforded hexacarbonyl{μ-{[1,1′-(dimethylsilylene)bis[methaneselenolato-κSe : κSe]](2 −)}}diiron(FeFe) (2). The analog bis-tellurolato hexacarbonyl{μ-{[1,1′-(dimethylsilylene)bis[methanetellurolato-κTe : κTe]](2 −)}}diiron(FeFe) (3) was obtained by treatment dimethylbis(tellurocyanatomethyl)dimethylsilane, which situ. All compounds characterized NMR, IR spectroscopy, mass spectrometry, elemental analysis single-crystal X-ray analysis. electrocatalytic properties [2Fe2X(Si)] (X=S, Se, Te) model A, 1, 2 towards formation evaluated.
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