Fluorocarbyne complexes via electrophilic fluorination of carbido ligands

The new fluorocarbynes [M([triple bond, length as m-dash]CF)(CO)(2)(Tp*)] (M = Mo, W; Tp* = tris(dimethylpyrazolyl)borate) arise from electrophilic fluorination of the lithiocarbynes [M([triple bond, length as m-dash]CLi)(CO)(2)(Tp*)] with FN(SO(2)Ph)(2). The reactions of [W([triple bond, length as m-dash]CF)(CO)(2)(Tp*)] with [AuCl(SMe(2))] and PhICl(2) afford the first μ(2)-fluorocarbyne complex [WAu(μ-CF)Cl(CO)(2)(Tp*)] and the first high oxidation state fluorocarbyne [W([triple bond, length as m-dash]CF)Cl(2)(Tp*)], respectively.