Stabilization of Lewis Acidic AuF3 as an N‐Heterocyclic Carbene Complex: Preparation and Characterization of [AuF3(SIMes)] |
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| Authors: | M Sc Mathias A Ellwanger Dr Simon Steinhauer Paul Golz Prof Dr Thomas Braun Prof Dr Sebastian Riedel |
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| Institution: | 1. Freie Universit?t Berlin, Institut für Chemie und Biochemie, Berlin, Germany;2. Humboldt-Universit?t zu Berlin, Department of Chemistry, Berlin, Germany |
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| Abstract: | 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. |
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| Keywords: | gold fluorides gold trifluoride Lewis acids N-heterocyclic carbenes strong oxidizers |
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