title: Intramolecular light induced activation of a Salen-Mn(III) complex by a ruthenium photosensitizer.
abstract: We have designed a molecular system consisting of a heteroleptic [Ru(bpy)(2)L](2+) chromophore covalently linked to a Mn(III)-Salen unit. We demonstrate the light induced oxidation of the Mn(III) center in this putative photo-catalyst assembly to a Mn(IV) high spin intermediate. Both oxidation states have been characterized by transient absorption and EPR techniques.
authors.affiliation: CEA, iBiTec-S, Service de Bioénergétique Biologie Structurale et Mécanismes (SB2SM), F-91191 Gif-sur-Yvette, France. christian.herrero@cea.fr
authors.forename: Christian
authors.initials: C
authors.lastname: Herrero
authors.forename: Joseph L
authors.initials: JL
authors.lastname: Hughes
authors.forename: Annamaria
authors.initials: A
authors.lastname: Quaranta
authors.forename: Nicholas
authors.initials: N
authors.lastname: Cox
authors.forename: A William
authors.initials: AW
authors.lastname: Rutherford
authors.forename: Winfried
authors.initials: W
authors.lastname: Leibl
authors.forename: Ally
authors.initials: A
authors.lastname: Aukauloo
mesh_terms: D015082:2,2'-Dipyridyl / Q000031:analogs & derivatives* / Q000737:chemistry; D002384:Catalysis; D004578:Electron Spin Resonance Spectroscopy; D008027:Light; D009942:Organometallic Compounds / Q000737:chemistry*; D010084:Oxidation-Reduction; D017319:Photosensitizing Agents / Q000737:chemistry*
chemical_list: C542902:Mn-salen; D009942:Organometallic Compounds; D017319:Photosensitizing Agents; C103599:bis(bipyridyl)ruthenium(II); D015082:2,2'-Dipyridyl