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Article Dans Une Revue Dalton Transactions Année : 2018

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

Résumé

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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hal-01889096 , version 1 (12-04-2019)

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David Gatineau, Denis Lesage, Hervé Clavier, Heloise Dossmann, Chen-Hui Chan, et al.. Bond Dissociation Energies of Carbonyl Gold Complexes: a New Descriptor of Ligand Effects in Gold(I) Complexes?. Dalton Transactions, 2018, 47 (43), pp.15497-15505. ⟨10.1039/C8DT03721C⟩. ⟨hal-01889096⟩

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