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Synthesis and Catalytic Performance of Gold Intercalated in the Walls of Mesoporous Silica
Published on: July 9, 2015
Gold(iii)-arene complexes by insertion of olefins into gold-aryl bonds
Feriel Rekhroukh1,2, Charlie Blons1,2, Laura Estévez3
1Université de Toulouse , UPS , 118 route de Narbonne , 31062 Toulouse , France . Email: amgoune@chimie.ups-tlse.fr ;
Abstract:
The synthesis and characterization of the first gold(iii)-arene complexes are described. Well-defined (P,C)-cyclometalated gold(iii)-aryl complexes were prepared and characterized by NMR spectroscopy. These complexes swiftly and cleanly reacted with norbornene and ethylene to provide cationic gold(iii)-alkyl complexes, in which the remote phenyl ring was η2-coordinated to gold. The interaction between the aromatic ring and the gold(iii) center was thoroughly analyzed by NMR spectroscopy, X-ray diffraction, and DFT calculations. The π-arene coordination was found to significantly influence the stability and reactivity of low coordinated gold(iii) alkyl species.
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