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Bond Dissociation Energies of Carbonyl Gold Complexes: a New Descriptor of Ligand Effects in Gold(I) Complexes?

Abstract

Ligand electronic effects in gold(I) chemistry have been evaluated by means of the experimental determination of M-CO bond dissociation energies for 16 [L-Au-CO]+ complexes, bearing L ligands widely used in gold catalysis. Energy-resolved analyzes have been achieved using tandem mass spectrometry with collision induced dissociation. Coupled to DFT calculations, this approach enables the quantification of ligand effects based on the LAu-CO bond strength. Further energy decomposition analysis gives access to detailed insights of this bond’s properties. Whereas small differences are observed between phosphine- and phosphite-containing gold complexes, carbene ligands are shown to stabilize much more efficiently the gold-carbonyl bond.

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Publication details

The article was received on 14 Sep 2018, accepted on 05 Oct 2018 and first published on 05 Oct 2018


Article type: Paper
DOI: 10.1039/C8DT03721C
Citation: Dalton Trans., 2018, Accepted Manuscript
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    Bond Dissociation Energies of Carbonyl Gold Complexes: a New Descriptor of Ligand Effects in Gold(I) Complexes?

    D. Gatineau, D. Lesage, H. Clavier, H. Dossmann, C. Chan, A. Milet, A. MEMBOEUF, R. B. Cole and Y. Gimbert, Dalton Trans., 2018, Accepted Manuscript , DOI: 10.1039/C8DT03721C

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