title: CuAAC-based assembly and characterization of a ruthenium-copper dyad containing a diimine-dioxime ligand framework.
abstract: The design of molecular dyads combining a light-harvesting unit with an electroactive centre is highly demanded in the field of artificial photosynthesis. The versatile Copper-catalyzed Azide-Alkyne Cycloaddition (CuAAC) procedure was employed to assemble a ruthenium tris-diimine unit to an unprecedented azide-substituted copper diimine-dioxime moiety. The resulting RuIICuIIdyad 4 was characterized by electrochemistry,1H NMR, EPR, UV-visible absorption, steady-state fluorescence and transient absorption spectroscopies. Photoinduced electron transfer from the ruthenium to the copper centre upon light-activation in the presence of a sacrificial electron donor was established thanks to EPR-monitored photolysis experiments, opening interesting perspectives for photocatalytic applications.
authors.affiliation: Laboratoire de Chimie et Biologie des Métaux, Univ. Grenoble Alpes, CNRS UMR 5249, CEA, 17 rue des martyrs, F-38054, Grenoble Cedex 9, France. murielle.chavarot-kerlidou@cea.fr vincent.artero@cea.fr.
authors.forename: Nicolas
authors.initials: N
authors.lastname: Queyriaux
authors.forename: Eugen S
authors.initials: ES
authors.lastname: Andreiadis
authors.forename: Stéphane
authors.initials: S
authors.lastname: Torelli
authors.forename: Jacques
authors.initials: J
authors.lastname: Pecaut
authors.forename: Brad S
authors.initials: BS
authors.lastname: Veldkamp
authors.forename: Eric A
authors.initials: EA
authors.lastname: Margulies
authors.forename: Michael R
authors.initials: MR
authors.lastname: Wasielewski
authors.forename: Murielle
authors.initials: M
authors.lastname: Chavarot-Kerlidou
authors.forename: Vincent
authors.initials: V
authors.lastname: Artero