Structural diversity for phosphine complexes of stibenium and stibinidenium cations

摘要

Reactions of trimethylphosphine or diphosphines with SbCl3 in the presence of A1C1_3 or Me_3SiSO_3CF_3 give ligand stabilized stibenium and stibinidenium cations. The geometry at eacli antimony center reveals a variety of environments for antimony that describes new bonding and highlights new directions in the chemistry of the pnictogen elements.