The Raman spectra of [SbCl4+][Sb2Cl2F9−], [SbCl4+][Sb2F11−], [AsCl4+][SbF6−], and SbCl4F(NbF5)x are reported. The spectra of all compounds except the last are interpreted in terms of a tetrahedral cation with weak association between the cation and anion. The spectra of the adduct found between SbCl4F and NbF5 are interpreted in terms of polymeric fluorine bridged arrangements.

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Mössbauer data for α- and β-SnWO4 and Sn(SO3X)2 are reported and the spectrum of SnCl2 re-examined.

An X-ray crystallographic analysis indicates that SbCl,F, exists as a cis-fluorine-bridged tetramer giving a distorted octahedral arrangement of halogen atoms around each antimony atom.