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Carbon Monoxide and Cyanide Ligands in a Classical Organometallic Complex Model for Fe-Only Hydrogenase
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1999
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Inorganic ChemistryCyanide LigandsEngineeringBiochemistryNatural SciencesMetalloproteinCoordination ComplexCyano-carbonyl Diiron SiteActive SiteBioorganometallic ChemistryFe-only HydrogenaseCatalysisChemistryCarbon MonoxideInorganic Compound
The Fe(I) organometallic complex [(µ-SCH(2)CH(2)CH(2)S)Fe(2)(CO)(6)] provides a structural model for the cyano-carbonyl diiron site of Fe-only hydrogenase as characterized by X-ray crystallography (the picture shows the structure (black) of the model overlaid with that of the Fe-Fe dimetallic site in the hydrogenase isolated from Desulfovibrio desulfuricans). Cyanide substitution of CO occurs readily and provides spectroscopic references for the active site.