General formation of trigonal-prismatic [Ag6X5(dppf)3]+ (X = Cl, Br, I) through an unusual ligand migration from NiX2(dppf) to AgOTf.

General formation of trigonal-prismatic [Ag6X5(dppf)3]+ (X = Cl, Br, I) through an unusual ligand migration from NiX2(dppf) to AgOTf.