Syntheses and vibrational spectra of xenon(VI) fluorogallate, xenon(VI) fluoroaluminate and xenon(VI) fluoroindate

Abstract

Liquid xenon difluoride at 140°C does not react with aluminium, gallium, and indium trifluorides, neither does liquid xenon hexafluoride at 60°C. Therefore the reactions between the corresponding hydrazinium fluorometalates (N 2H 6AlF 5, N 2H 6GaF 5 and N 2H 5InF 4) and XeF 2 and XeF 6 were carried out. N 2H 6AlF 5, N 2H 6GaF 5 and N 2H 5InF 4 react with XeF 2 at 60°C (at 25°C in the case of indium) yielding only the corresponding trifluorides, while the reaction with XeF 6 proceeds at room temperature (at - 25°C in the case of indium) yielding XeF 6.2AlF 3, XeF 6.GaF 3 and xenon(VI) fluoroindate(III) contaminated with indium trifluoride. Spectroscopic evidence suggests that these compounds are salts of the XeF + 5 cation squashed between polymeric anions of the type (M 2F 7) x- x or (MF 4) x- x.