Details

Autor(en) / Beteiligte

• Liu, Xu-Feng
• Xiao, Xun-Wen
• Shen, Liang-Jun

Titel

Synthesis, characterization, and electrochemical properties of diiron azadithiolate complexes related to the active site of [FeFe]-hydrogenases

Ist Teil von

• Transition metal chemistry (Weinheim), 2011-08, Vol.36 (5), p.465-469

Ort / Verlag

Dordrecht: Springer Netherlands

Erscheinungsjahr

2011

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Treatment of [(μ-SCH 2 ) 2 NPh]Fe 2 (CO) 6 ( A ) with PPh 3 or PPh 2 H in the presence of the decarbonylating agent Me 3 NO·2H 2 O afforded complexes [(μ-SCH 2 ) 2 NPh]Fe 2 (CO) 5 (PPh 3 ) ( 1 ) and [(μ-SCH 2 ) 2 NPh]Fe 2 (CO) 5 (PPh 2 H) ( 2 ) in 87% and 74% yields, respectively. Complexes 1 and 2 were characterized by elemental analysis and various spectroscopic techniques. The molecular structures of 1 and 2 were further determined by X-ray crystallography. In both cases, the monophosphine ligand resides in an axial position of the square-pyramidal Fe atom and trans to the benzene ring of the azadithiolate ligand, in order to minimize steric repulsion. On the basis of electrochemical studies, all these complexes were found to catalyze proton reduction to H 2 in the presence of acetic acid.