Synthesis and properties of pentavalent antimony and bismuth fluorides

Publisher Website
Google Scholar
Abstract
Properties of Sbv and Biv fluorides and MIIF2‐MvF5 (Mv  Sb, Bi; MII  Mg, Ca, Sr, Ba), HalF3‐BiF5 (Hal  Cl, Br) systems have been studied. Only MII(MvF6)2 and HalF2[BiF6] are shown to be formed in these systems. MII(MvF6)2 and HalF2[BiF6] contain MvF6‐octahedra in their crystal lattices. SbF5 is found to be a stronger Lewis acid than BiF5 and to be capable to substitute the latter in its fluoro complexes. BiF5, in contrast to SbF5, does not form polyfluoro anions (e.g.MF11‐etc.). The thermal stability of Sbv and Biv fluorides and their transformations at high temperature were studied.