REACTIVE SCATTERING OF CROSSED SUPERSONIC BEAMS - CL-]ICL+CH2I(CH2I2)

The reaction Cl+CH2I2-->ICl+CH2I has been studied at a relative collis ion energy of 53.2 kJ mol(-1) using the crossed-beam technique. Angula r and translational energy distributions of reactive scattered ICl pro ducts have been measured. The angular distribution is consistent with reaction occurring through a short-lived complex with lifetime about 0 .8 of the rotational period. The kinetic energy distributions measured for this system show strong coupling to scattering angles. The forwar d-and backward-scattered products have higher translational energy tha n those that are sideways scattered. A phase-space model is developed which explains the experimental energy distributions well.