Evidence for the Formation of Terminal Hydrides by Protonation of an Asymmetric Iron Hydrogenase Active Site Mimic
- 31 March 2007
- journal article
- research article
- Published by American Chemical Society (ACS) in Inorganic Chemistry
- Vol. 46 (9) , 3426-3428
- https://doi.org/10.1021/ic0703124
Abstract
Treatment of [Fe2(μ-pdt)(CO)6] [pdt = S(CH2)3S] with dppe (Ph2PCH2CH2PPh2) in refluxing toluene affords the asymmetric complex [Fe2(μ-pdt)(CO)4(dppe)] (1). Protonation of 1 with HBF4−Et2O in CH2Cl2 gives at room temperature the μ-hydrido derivative [Fe2(μ-pdt)(CO)4(dppe)(μ-H)](BF4) (2). Monitoring the reaction by 1H, 31P, and 13C NMR at low temperature reveals unambiguously that the process of the protonation of 1 implies terminal hydride intermediates.Keywords
This publication has 9 references indexed in Scilit:
- Chelate Control of Diiron(I) Dithiolates Relevant to the [Fe−Fe]- Hydrogenase Active SiteInorganic Chemistry, 2007
- Synthesis, crystal structure and protonation of the asymmetric iron-only hydrogenase model [Fe2(CO)3(μ-pdt){μ,η2-Ph2PCH2CH2P(Ph)CH2CH2PPh2}] (pdt=SCH2CH2CH2S)Inorganic Chemistry Communications, 2007
- Characterization of a Diferrous Terminal Hydride Mechanistically Relevant to the Fe-Only HydrogenasesJournal of the American Chemical Society, 2005
- Research on Soluble Metal Sulfides: From Polysulfido Complexes to Functional Models for the HydrogenasesInorganic Chemistry, 2003
- Dinuclear Iron Isonitrile Complexes: Models for the Iron Hydrogenase Active SiteInorganic Chemistry, 2003
- Chemistry and the hydrogenasesChemical Society Reviews, 2003
- Bimetallic Carbonyl Thiolates as Functional Models for Fe-Only HydrogenasesInorganic Chemistry, 2002
- Yields of singlet molecular oxygen from peroxyl radical terminationJournal of the American Chemical Society, 1992
- Protonation of the metal—metal bond in Fe2(μ-A)(μ-A′)(CO)4L2 complexes (A A′ SC6H5, P(C6H5)2, P(CH3)2; A SC6H5, A′ z.dbnd; P(C6H5)2; L z.dbnd; P(C6H5)3-n(CH3)n). : III. Experimental study of the influence of the A and A′ bridges on the basicity of the metal—metal bondJournal of Organometallic Chemistry, 1979