Journal of Chemical Physics, Vol.109, No.1, 208-213, 1998
Single crystal Raman spectra of 1,2,4,5-tetrabromobenzene: Calculational and experimental assignment of the internal modes
A detailed study of the fundamental internal modes of the 1,2,4,5-tetrabromobenzene crystal has provided assignments of Raman-active modes consistent with polarized single-crystal measurements. A normal-mode calculation based on a valence force field derived from brominated and chlorinated benzenes is found to be in excellent agreement with the assignments. Additional bands arising from anharmonic interactions of the fundamentals are also assigned.