Vibrational modes are assigned to the Raman bands of 1- and 2-methylimidazole. Assignments are based on a review of the literature assignments of imidazole, 1-methylimidazole and 4(5)-methylimidazole supplemented by Raman depolarization studies of 1.0 M solutions of 1- and 2-methylimidazole. Raman shifts observed for N-deuteration of 2-methylimidazole are also considered.
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Carter et al. (1997) studied this question.