INTENSITY IN THE RAMAN EFFECT: III. THE EFFECT OF DEUTERIUM SUBSTITUTION ON THE INTENSITY OF RAMAN BANDS OF BENZENE

Abstract

Standard intensities of the Raman bands of C₆H₆, 1,3,5,-C₆H₃D₃, and C₆D₆ have been obtained photoelectrically. An ambiguity in the vibrational assignment for 1,3,5,-C₆D₃H₃ has been removed, and the assumption of the invariance of the polarizability and anisotropy derivatives upon isotopic substitution has been tested. A sum rule for depolarization ratios of Raman bands in isotopic homologues has been derived subject to the same assumptions used for obtaining the intensity sum rules.