Study of molecular reorientational dynamics of benzene and benzene + chloroform ‘complex’ under high pressure

Abstract

The molecular reorientational dynamics of benzene and the benzene chloroform “complex” have been studied up to pressures of 5 kbar and at temperatures of 300 and 333 K. Raman spectroscopy was used as the probing source. Dipole autocorrelation functions were obtained from Fourier analysis of the Raman active ν₁₀ mode of benzene. It was found that in the short time the molecular diffusion of benzene relative to the “complex” was indistinguishable. Molecular rotation with random collisions is the dominant mechanism proposed for the reorientational process of benzene and the “complex”.