Raman Scattering and Melting Point in SbCl 3

The Raman spectrum of SbCl3 is studied as a function of the temperature from 20°C to 85°C both in the solid and in the liquid state. In particular the evolution of the spectra is observed near and through the solid-liquid transition. Measurements are also performed in the liquid state, under the melting temperature (supercooled liquid). The results obtained are discussed both as far as the problem of the melting and the liquid structure is concerned. Information concerning both intramolecular and intermolecular modes are obtained and their interconnection is proved, as well as the role played in the solid and liquid state respectively.