Intermode energy transfer in vibrationally excited O3

The laser-excited fluorescence method has been employed to determine the rate constants for vibrational relaxation of the O3 (010), O3 (100) and O3 (001) levels at 298 K. The fluorescence observations from the O3 (010) level provide direct measurements of the rate for intermode vibrational energy transfer from the coupled nu sub 1 and nu sub 3 modes to the nu sub 2 mode. The slowness of this process indicates the likelihood that the nu sub 1 and/or nu sub 3 modes (rather than the nu sub 2 mode) play a predominant role in the laser-enhanced reaction between vibrationally excited O3 and NO at 298 K.