STATE-TO-STATE DYNAMICS OF THE H-]HD(V',J')+CCL3 REACTION(CDCL3(V(1)''=1))

We report a study of the reaction dynamics of the H + CDCl3 --> HD(ups ilon'j') + CCl3 reaction with the CDCl3 reactant prepared in the nu(1) C-D stretch upsilon ''=1 excited state. Stimulated Raman excitation i s used to prepare the CDCl3(upsilon ''=1) reactant and coherent anti-S tokes Raman scattering is used to detect the HD(upsilon'j') product, u nder effectively single-collision conditions at a relative energy of 1 .6 eV. Even though the vibrational excitation energy of the reactant ( 0.28 eV) is small compared to the collision energy, which greatly exce eds the reaction barrier height, the vibrational excitation of the rea ctant increases the reaction cross section by a factor of 1.66 +/- 0.1 5. Despite this, none of the energy added by the reactant vibrational excitation appears as HD product vibration or rotation. All of it goes into product translation and/or CCl3 internal energy.