Burt, LiamHill, AnthonyJones, Stephanie2023-01-031359-7345http://hdl.handle.net/1885/282555Independently unstable thiocarbonylphosphorane or arsorane ligands SCAR3 (A = P, As) are observed in the salts [W(η2-C,S-SCAR3)(CO)2(Tp*)]PF6 [AR3 = PCy3, PMenPh3-n: n = 0, 1, 2, AsMePh2; Tp* = tris(dimethylpyrazolyl)borate] which arise from the reactions of phosphonio- or arsoniocarbynes [W(≡CAR3)(CO)2(Tp*)]+ with sulfur.We gratefully acknowledge the Australian Research Council (DP190100723 and DP200101222) for funding.application/pdfen-AU© 2022 Royal Society of Chemistrycrystallography, x-rayligandsmodels, molecularsulfurboratessaltsThiocarbonylphosphorane and arsorane ligands2022-10-0410.1039/d2cc03747e