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Modeling [FeFe] hydrogenase: Synthesis and protonation of a diiron dithiolate complex containing a phosphine-N-heterocyclic-carbene ligand

Abstract : The ligand exchange reaction of IMe-(CH2)2-PPh2 (IMe = 1-methyimidazol-2-ylidene) and the hexacarbonyl complex [{Fe2{μ-S(CH2)3S}(CO)6] (1) resulted in the formation of the chelated complex [{Fe2{μ-S(CH2)3S}(CO)4(IMe-(CH2)2-PPh2)] (2). The molecular structure of 2 was confirmed by spectroscopic and X-ray analyses. This complex catalyzes proton reduction. Low temperature NMR studies on the protonation of 2 revealed the formation of a terminal hydride intermediate.
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https://hal.univ-brest.fr/hal-01580265
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Submitted on : Friday, September 1, 2017 - 11:26:11 AM
Last modification on : Thursday, October 3, 2019 - 8:50:07 AM

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Didier Morvan, Jean-François Capon, Frederic Gloaguen, François Y. Pétillon, Philippe Schollhammer, et al.. Modeling [FeFe] hydrogenase: Synthesis and protonation of a diiron dithiolate complex containing a phosphine-N-heterocyclic-carbene ligand. Journal of Organometallic Chemistry, Elsevier, 2009, 694 (17), pp.2801 - 2807. ⟨10.1016/j.jorganchem.2009.01.018⟩. ⟨hal-01580265⟩

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