title: First insights into the protonation of dissymetrically disubstituted di-iron azadithiolate models of the [FeFe]H2ases active site.
abstract: Dissymetrically disubstituted di-iron azadithiolate complexes [Fe2(CO)4(kappa 2-LL){mu-SCH2N(iPr)CH2S}] (LL = dppe, phen) protonate exclusively at the N atom of the bridge, like the hexacarbonyl precursor but in contrast to symmetrically disubstituted analogues; substitution of dppe for two CO groups noticeably increases the kinetics of the electrocatalytic proton reduction process.
authors.affiliation: UMR CNRS 6521, Université de Bretagne Occidentale, C.S. 93837, 29238 Brest cedex 3, France.
authors.forename: Salah
authors.initials: S
authors.lastname: Ezzaher
authors.forename: Pierre-Yves
authors.initials: PY
authors.lastname: Orain
authors.forename: Jean-François
authors.initials: JF
authors.lastname: Capon
authors.forename: Frédéric
authors.initials: F
authors.lastname: Gloaguen
authors.forename: François Y
authors.initials: FY
authors.lastname: Pétillon
authors.forename: Thierry
authors.initials: T
authors.lastname: Roisnel
authors.forename: Philippe
authors.initials: P
authors.lastname: Schollhammer
authors.forename: Jean
authors.initials: J
authors.lastname: Talarmin
mesh_terms: D001372:Aza Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D002384:Catalysis; D020134:Catalytic Domain; D018360:Crystallography, X-Ray; D004563:Electrochemistry; D005290:Ferric Compounds / Q000737:chemistry*; D006864:Hydrogenase / Q000737:chemistry*; D007506:Iron-Sulfur Proteins / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008956:Models, Chemical; D008968:Molecular Conformation; D015394:Molecular Structure; D010084:Oxidation-Reduction; D011522:Protons; D013438:Sulfhydryl Compounds / Q000737:chemistry*
chemical_list: D001372:Aza Compounds; D005290:Ferric Compounds; D007506:Iron-Sulfur Proteins; D011522:Protons; D013438:Sulfhydryl Compounds; C002007:dithiol-iron(III)-sulfide complex; C118830:iron hydrogenase; D006864:Hydrogenase