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

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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.