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Stabilization of Lewis Acidic AuF₃ as Carbene Complex: Preparation and Characterization of [AuF₃(SIMes)]

Mathias A. Ellwanger, Simon Steinhauer, Paul Golz, Thomas Braun, Sebastian Riedel – 2018

Two different reaction routes are described to access the unprecedented trifluoridoorganogold(III) complex [AuF₃(SIMes)]. The compound bears the N‐heterocyclic carbene SIMes (1,3‐bis(2,4,6‐trimethylphenyl)‐4,5‐dihydroimidazol‐2‐ylidene) as a ligand for a molecular Lewis acidic AuF3 unit and was characterized by NMR spectroscopy as well as X‐ray crystallography. Apart from the use of a [AuF₄]⁻ salt as precursor, the strong oxidizing compound AuF₃ can be employed neat as starting material. The reaction proceeded even in organic solvents in the presence of SIMes as the ligand precursor. Decomposition reactions with the solvent can, therefore, be prevented by using this strategy.

Titel
Stabilization of Lewis Acidic AuF₃ as Carbene Complex: Preparation and Characterization of [AuF₃(SIMes)]
Verfasser
Mathias A. Ellwanger, Simon Steinhauer, Paul Golz, Thomas Braun, Sebastian Riedel
Schlagwörter
Gold fluorides - Potential Oxidizers - Fluorine Chemistry - Bonding theory - Carbene
Datum
2018
Erschienen in
Angew. Chem. Int. Ed. 2018, 57,7210–7214 (Angew.Chem. 2018, 130,7328 –7332)
Zitierweise
DOI: 10.1002/anie.201802952 (Int. Ed.); 10.1002/ange.201802952
Sprache
eng