The Raman Spectra of Some Polysulphuryl Chlorides and Fluorides

The Raman spectrum of disulphuryl chloride, S 2 O 5 Cl 2 , has been reinvestigated and the Raman spectra of S 2 O 5 F 2 , S 2 O 5 ClF, S 3 O 8 Cl 2 , S 3 O 8 F 2 , and the new compound S 3 O 8 ClF are reported for the first time. The vibrational spectra of these polysulphuryl halides are interpreted in terms of characteristic group frequencies by comparison with the vibrational spectra of simple sulphuryl compounds. The spectra are consistent with acyclic structures for the polysulphuryl halides.