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

Nicolas Queyriaux, Eugen S. Andreiadis, Stéphane Torelli, Jacques Pecaut, Brad S. Veldkamp, Eric A. Margulies, Michael R. Wasielewski, Murielle Chavarot-Kerlidou, Vincent Artero

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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.

Original languageEnglish
Pages (from-to)251-261
Number of pages11
JournalFaraday Discussions
Volume198
DOIs
Publication statusPublished - Jan 1 2017

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ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Queyriaux, N., Andreiadis, E. S., Torelli, S., Pecaut, J., Veldkamp, B. S., Margulies, E. A., Wasielewski, M. R., Chavarot-Kerlidou, M., & Artero, V. (2017). CuAAC-based assembly and characterization of a ruthenium-copper dyad containing a diimine-dioxime ligand framework. Faraday Discussions, 198, 251-261. https://doi.org/10.1039/c6fd00204h