Title: Synthesis of Gold(I)−Trifluoromethyl Complexes and their Role in Generating Spectroscopic Evidence for a Gold(I)−Difluorocarbene Species.
Authors: Vanden Broeck, Sofie M. P.; Nelson, David J.; Collado, Alba; Falivene, Laura; Cavallo, Luigi; Cordes, David B.; Slawin, Alexandra M. Z.; Van Hecke, Kristof; Nahra, Fady; Cazin, Catherine S. J.; Nolan, Steven P.
Abstract: Readily prepared and bench‐stable [Au(CF3)(NHC)] compounds were synthesized by using new methods, starting from [Au(OH)(NHC)], [Au(Cl)(NHC)] or [Au(L)(NHC)]HF2 precursors (NHC=N‐heterocyclic carbene). The mechanism of formation of these species was investigated. Consequently, a new and straightforward strategy for the mild and selective cleavage of a single carbon/fluorine bond from [Au(CF3)(NHC)] complexes was attempted and found to be reversible in the presence of an additional nucleophilic fluoride source. This straightforward technique has led to the unprecedented spectroscopic observation of a gold(I)−NHC difluorocarbene species.
Subjects: GOLD; SPECIES; EVIDENCE; FLUORINE; FLUORIDES; CARBENES
Publication: Chemistry - A European Journal, 2021, Vol 27, Issue 33, p8461
ISSN: 0947-6539
Publication type: Academic Journal
DOI: 10.1002/chem.202100195

Synthesis of Gold(I)−Trifluoromethyl Complexes and their Role in Generating Spectroscopic Evidence for a Gold(I)−Difluorocarbene Species.

Vanden Broeck, Sofie M. P.; Nelson, David J.; Collado, Alba; Falivene, Laura; Cavallo, Luigi; Cordes, David B.; Slawin, Alexandra M. Z.; Van Hecke, Kristof; Nahra, Fady; Cazin, Catherine S. J.; Nolan, Steven P.