Zur Kenntnis der Strontiumpolysulfide Präparative,röntgenographische und schwingungsspektroskopische Untersuchungen

X-ray, I.R., and Raman Data of Strontium Polysulfides The strontium polysulfides SrS₂, SrS₃A, and SrS₃B were studied in terms of preparation, thermal decomposition, and phase transition. The i.r. and Raman spectra of the strontium polysulfides as well as the normal coordinates of the phonon modes are presented and discussed in comparison with the respective barium compounds. From the spectra it is shown that S₃^2? entities are present in SrS₃A as in SrS₃B.