The Vibrational Spectra and Structure of Inorganic Molecules. II. Sulfur S8, Sulfur Chloride S2Cl2, Phosphorous P4

Abstract

The infra-red spectra from 2–25μ have been obtained for S8 as solid and in CS2 solution; for S2Cl2 as liquid and in CS2 solution; and for P4 in CS2 solution. A satisfactory assignment of the Raman and infra-red spectrum of S8 has been made on the basis of D4d symmetry. The spectrum and valence force calculations are consistent with the C2 structure for S2Cl2, and together with the electron diffraction data exclude the C2v form. The vibrational spectrum of P4 is interpreted unequivocally on the basis of the tetrahedral structure (Td).