ANALYSIS OF THE SPECTRA OF THE DEPOLARIZED COMPONENT OF RAYLEIGH LIGHT-SCATTERING (DRS) BY A FEW SIMPLE ORGANIC LIQUIDS

The profiles of the depolarized component of Rayleigh light scattering were measured for a few organic liquids. The experimental spectra were analysed assuming the simplest model based on a partition of the spectrum into a reorientational part of lorentzian shape and an interaction-induced wing of exponential shape. Under this assumption a narrow spectral range was found, in which the residuals of the fit between the theoretical and the experimental curves were the smallest and the background effect on the parameters of the model was negligible. The partition point of the spectrum omega(p) determined in the method of fitting the curves enables us to find the halfwidth at the half height of the Lorentz curve GAMMA, the orientational relaxation times tau(or) and rate constants of the exponent decay DELTA of the interaction-induced effect for chosen organic liquids (CS2, CCl4, C6H8, C8H10).