Diiron Complexes with a [2Fe3S] Core Related to the Active Site of [FeFe]H2ases

Six‐membered heterocycles, 1,4‐dithiane and 1,4‐thioxane, were treated with [Fe2(CO)6(μ‐pdt)] (pdt = propanedithiolate) in order to synthesise [2Fe3S] complexes with well positioned heteroatoms as potential base. Monosubstituted compounds of general formula [Fe2(CO)5L(μ‐pdt)] (L = 1,4‐dithiane, 1,4‐...

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Bibliographic Details
Published in:European Journal of Inorganic Chemistry 2011, Vol.2011 (7), p.1038-1042
Main Authors: Charreteur, Kévin, Capon, Jean-François, Gloaguen, Frédéric, Pétillon, François Y., Schollhammer, Philippe, Talarmin, Jean
Format: Review
Language:English
Subjects:
Bioinspired chemistry
Chemical Sciences
Coordination chemistry
Electrochemistry
Hydrogen
Hydrogenases
Inorganic chemistry
Iron
Sulfur
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Summary:Six‐membered heterocycles, 1,4‐dithiane and 1,4‐thioxane, were treated with [Fe2(CO)6(μ‐pdt)] (pdt = propanedithiolate) in order to synthesise [2Fe3S] complexes with well positioned heteroatoms as potential base. Monosubstituted compounds of general formula [Fe2(CO)5L(μ‐pdt)] (L = 1,4‐dithiane, 1,4‐thioxane) were mainly obtained and characterised by 1H NMR, IR, elemental analysis and X‐ray diffraction studies. Electrochemical behaviour of these monosubstituted derivatives was investigated by cyclic voltammetry. An original tetranuclear cluster with a [4Fe8S] core was also isolated as a minor product and structurally characterised. Molecules in which a [2Fe3S] core is combined with six‐membered heterocyclic sulfur ligands with well positioned heteroatoms, such as 1,4‐dithiane (C4H8S2) and 1,4‐thioxane (C4H8OS) and an unexpected [4Fe8S] cluster have been elaborated.
ISSN:1434-1948
1099-0682
DOI:10.1002/ejic.201000984