Nuclear magnetic resonance studies on fluorine-containing compounds. Part I. Antimony pentafluoride and its reactions with antimony trifluoride, arsenic trifluoride, and niobium pentafluoride

Abstract

In the SbF₅–AsF₃ system the Sb₂F₁₁^– ion has been shown to exist. It is suggested that the AsF₂⁺ ion is also formed. Dissolution, rather than reaction, of niobium pentafluoride and of antimony trifluoride in antimony pentafluoride is established. A ¹⁹F n.m.r. study on the polymeric nature of antimony pentafluoride in an inert solvent (perfluorocyclobutane) has been carried out.