Caesium tetrathiotungstate(VI). Matrix isolation and mass spectrometric studies of a ternary sulphide which is stable in the vapour

Abstract

Cs₂WS₄ can be sublimed at approximately 800 °C in vacuo(ca. 10^–5 Torr). The major species detected mass spectrometrically is the parent ion. Matrix-isolation i.r. studies suggest but do not prove that the molecule has a structure similar to that adopted by M₂XO₄ species (where M is an alkali-metal ion and X = S, Cr, Mo, or W). In argon and nitrogen matrices the symmetry appears to be lower than that in neon.