Electrochemistry of Simple Organometallic Models of Iron–Iron Hydrogenases in Organic Solvent and Water

Abstract : Synthetic models of the active site of iron–iron hydrogenases are currently the subjects of numerous studies aimed at developing H2-production catalysts based on cheap and abundant materials. In this context, the present report offers an electrochemist’s view of the catalysis of proton reduction by simple binuclear iron(I) thiolate complexes. Although these complexes probably do not follow a biocatalytic pathway, we analyze and discuss the interplay between the reduction potential and basicity and how these antagonist properties impact the mechanisms of proton-coupled electron transfer to the metal centers. This question is central to any consideration of the activity at the molecular level of hydrogenases and related enzymes. In a second part, special attention is paid to iron thiolate complexes holding rigid and unsaturated bridging ligands. The complexes that enjoy mild reduction potentials and stabilized reduced forms are promising iron-based catalysts for the photodriven evolution of H2 in organic solvents and, more importantly, in water.
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Inorganic Chemistry, American Chemical Society, 2016, 55 (2), pp.390 - 398. 〈http://pubs.acs.org/doi/abs/10.1021/acs.inorgchem.5b02245〉. 〈10.1021/acs.inorgchem.5b02245〉
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http://hal.univ-brest.fr/hal-01539195
Contributeur : Nicolas Renard <>
Soumis le : mercredi 14 juin 2017 - 15:42:21
Dernière modification le : jeudi 11 janvier 2018 - 06:17:06

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Frederic Gloaguen. Electrochemistry of Simple Organometallic Models of Iron–Iron Hydrogenases in Organic Solvent and Water. Inorganic Chemistry, American Chemical Society, 2016, 55 (2), pp.390 - 398. 〈http://pubs.acs.org/doi/abs/10.1021/acs.inorgchem.5b02245〉. 〈10.1021/acs.inorgchem.5b02245〉. 〈hal-01539195〉

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