Raman Spectra of Benzene and Hydrogen Iodide inthe Liquid and Solid State

Abstract

A SYSTEMATIC investigation at low temperatures of the oscillation and rotation Raman spectra of simple molecules as they are affected by their state of aggregation and by temperature seems to us of great importance; for the transition from the gaseous to the liquid state will show mainly the influence of density, while in the transition from the liquid to the solid state the orientation of the exchange forces due to the crystal structure may have some influence on the Raman lines. Moreover, having ascertained the dependence of the Raman spectra upon temperature, we are in the position to say something about the magnitude of the exchange forces and the rotation of the molecules in the crystal. FIG. 1.