Phosphonitrilic derivatives. Part XVII. Complexes of phosphonitrilic fluorides with antimony pentafluoride

Abstract

Crystalline complexes of the type (NPF₂)_n, 2SbF₅(n= 3–6) are formed when equimolar amounts of (NPF₂)_n and antimony pentafluoride are allowed to react at 25°. With arsenic pentafluoride, N₅P₅F₁₀ forms a 1 : 1 complex which readily dissociates, but with phosphorus pentafluoride or boron trifluoride no complex formation is observed at 25°. Fluorine-bridged structures are suggested for the antimony pentafluoride complexes.