Low-Frequency Raman Spectrum of Imidazole Single Crystals

Abstract

The low-frequency Raman spectrum of imidazole single crystals is given. Of 12 frequencies active in the Raman spectrum, 11 have been recorded. Rotational oscillations have been assigned by the method of Kastler and Rousset. Owing to the specific structure of the imidazole crystal lattice, translational vibrations have been separated into two groups and thus a better assignment has been achieved.