Far-infrared reflectance spectra of some hexachlorotellurates and other hexachlorometallates

Abstract

Far-i.r. reflectance spectra of M₂^IMCl₆ complexes where M = Sn, Pt, or Te, have been used to estimate the half-bandwidths of the v₃ vibration of the [MCl₆]^2– ions. The values are substantially lower than those found from absorption spectra of powdered samples but those for the tellurates are greater than those for the platinates and stannates. An earlier interpretation of the mull i.r. spectra is supported by these results.