Depolarized Rayleigh scattering and orientational relaxation of molecules in solution. IV. Mixtures of hexafluorobenzene with benzene and with mesitylene

Measurements of the orientational relaxation times of the components of mixtures of hexafluorobenzene with benzene and mesitylene have been made by depolarized Rayleigh scattering. In both mixtures, there were strong ’’static’’ and ’’dynamic’’ cross correlation terms which affected the individual reorientation times. There was no significant contribution to the Rayleigh spectra from a long-lived complex in these mixtures.