New Systematic Route to Mixed-Valence Triiron Clusters Derived from Dinuclear Models of the Active Site of [Fe鈥揊e]-Hydrogenases

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• 作者：Laetitia Beaume ; Martin Cl茅mancey ; Genevi猫ve Blondin ; Claudio Greco ; Fran莽ois Y. P茅tillon ; Philippe Schollhammer ; Jean Talarmin
• 刊名：Organometallics
• 出版年：2014
• 出版时间：November 24, 2014
• 年：2014
• 卷：33
• 期：22
• 页码：6290-6293
• 全文大小：330K
• ISSN：1520-6041

文摘

A novel reaction pathway to synthesize the linear trinuclear clusters [Fe₃(CO)₅(魏²-diphosphine)(渭-dithiolate)₂] via the direct reaction of the dinuclear hexacarbonyl precursor [Fe₂(CO)₆(渭-dithiolate)] with the mononuclear species [Fe(CO)₂(魏²-diphosphine)(魏²-dithiolate)] has been developed with diphosphine (dppe) and dithiolate (pdt = propanedithiolate) (1) or adt^Bn ({SCH₂}₂NBn = azadithiolate) (2). A crystallographic study was carried out on 2 and M枚ssbauer spectroscopy, and DFT calculations have been used to describe the electronic and structural properties of 1. The electrochemical properties of 1 in the absence and in the presence of a weak acid have been the subject of a preliminary investigation.