A RAMAN SPECTROSCOPIC STUDY OF THE LOW-FREQUENCY VIBRATIONS OF o-DIMETHOXYBENZENE AND ITS METHYL DEUTERATED ANALOGUES

Article abstract of DOI:10.1016/0022-2860(83)85065-0

The low-frequency (100-400 cm^-1) Raman spectra of liquid (at 300 K) and solid (at 130 K) veratrole (o-dimethoxybenzene), and its methyl deuterated analogues, have been measured.The methyl and methoxyl torsional transitions have been identified, and the corresponding rotational barriers have been determined.The interpretation of the spectra points to a conformationally mixed situation for solid veratrole, in which both planar and non-planar conformers may co-exist.