Complexes of Stiboranium Mono‐, Di‐, and Trications

Abstract Reaction of Ph 2 SbCl 3 with 2,2′‐bipyridine and Me 3 SiOSO 2 CF 3 releases chlorobenzene, which is interpreted as a reductive (Sb V /Sb III ) elimination from a complex of a stiboranium cation. Conversely, reactions of Ph 2 SbCl 3 with 4‐methylpyridine‐ N ‐oxide and AgOSO 2 CF 3 give redox‐resistant complexes with the generic formulae [Ph 2 SbCl 3−x L x+1 ][OTf] x , including a compound containing a pnictogen(V) trication.