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CuAAC-based assembly and characterization of a ruthenium–copper dyad containing a diimine–dioxime ligand framework

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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 RuIICuII dyad 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.

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Publication details

The article was received on 04 Oct 2016, accepted on 01 Nov 2016 and first published on 07 Nov 2016


Article type: Paper
DOI: 10.1039/C6FD00204H
Citation: Faraday Discuss., 2017, Advance Article
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    CuAAC-based assembly and characterization of a ruthenium–copper dyad containing a diimine–dioxime ligand framework

    N. Queyriaux, E. S. Andreiadis, S. Torelli, J. Pecaut, B. S. Veldkamp, E. A. Margulies, M. R. Wasielewski, M. Chavarot-Kerlidou and V. Artero, Faraday Discuss., 2017, Advance Article , DOI: 10.1039/C6FD00204H

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