Raman and IR spectra of bromocyclohexane dissolved in methylcyclohexane, methanol, 1-propanol and 2-propanol have been recorded. The isotropic line widths of the C-Br stretching mode for the axial (658 cm - 1 ) and the equatorial (686 cm - 1 ) conformers as well as of the ν 1 ring mode for the axial (804 cm - 1 ) and the equatorial (811 cm - 1 ) conformers have been measured as a function of concentration. The ratio of integral Raman intensities and IR absorptions of the axial and the equatorial conformers, the band widths and their concentration dependence for the C-Br stretching mode differ considerably from those obtained for the ring mode ν 1 . To make this discrepancy clearer we have studied solvent effect on vibrational dynamics of bromocyclohexane by using various models of vibrational dephasing.