title: A dyad as photocatalyst for light-driven sulfide oxygenation with water as the unique oxygen atom source.
abstract: With the objective to convert light energy into chemical oxidation energy, a ruthenium-based dyad constituted of the assembly of a photosensitizer and a catalytic fragment was synthesized. Upon irradiation with blue LEDs, and in the presence of an electron acceptor, the complex is able to catalyze selective sulfide oxygenation involving an oxygen atom transfer from water to the substrate. Electrochemical and photophysical studies highlighted a proton-coupled electron transfer (PCET) to access to a high valent oxidant Ru(IV) oxo species.
authors.affiliation: Laboratoire de Chimie et Biologie des Métaux-UMR 5249, Université Grenoble I-CNRS-CEA, CEA Grenoble-iRTSV, 17 avenue des Martyrs, 38054 Grenoble cedex 9, France. ohamelin@cea.fr
authors.forename: Olivier
authors.initials: O
authors.lastname: Hamelin
authors.forename: Pascal
authors.initials: P
authors.lastname: Guillo
authors.forename: Frédérique
authors.initials: F
authors.lastname: Loiseau
authors.forename: Michel-Franck
authors.initials: MF
authors.lastname: Boissonnet
authors.forename: Stéphane
authors.initials: S
authors.lastname: Ménage
mesh_terms: D002384:Catalysis; D004563:Electrochemistry; D004583:Electrons; D008027:Light; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry*; D055668:Photochemical Processes; D017319:Photosensitizing Agents / Q000138:chemical synthesis / Q000737:chemistry*; D011522:Protons; D012428:Ruthenium / Q000737:chemistry*; D013440:Sulfides / Q000737:chemistry*; D014867:Water / Q000737:chemistry*
chemical_list: D009942:Organometallic Compounds; D017319:Photosensitizing Agents; D011522:Protons; D013440:Sulfides; D014867:Water; D012428:Ruthenium; D010100:Oxygen