Synthesis and Structural Characterization of Diiron Ethanedithiolate Complex (μ-SCH2)2Fe2(CO)4[(η~5-Ph2PC5H4)2Fe]

摘要

A diiron ethanedithiolate complex (μ-SCH2)2Fe2(CO)4[(η~5-Ph2PC5H4)2Fe] (1), as the active site of [FeFe]-hydrogenases, has been prepared and characterized by spectroscopy. The title complex could be prepared by reaction of [(μ-SCH2)2]Fe2(CO)6 (A) with 1,1'-bis(diphenylphosphino)ferrocene (dppf) [(η~5-Ph2PC5H4)2Fe] at reflux in xylene in 26 % yield. The new complex was characterized by IR, ~1H NMR, ~(31)P NMR and ~(13)C NMR spectroscopy.