Rate Measurement of the Reaction of CF2Cl Radicals with O2 (original) (raw)

We have studied the association reaction of the CFzCl radicals with Oz in presence of Nz. The infrared multiple photon dissociation (IRMPD) technique with a homemade TEA COz laser was used for the CFzCI radical generation and the vibrational chemiluminiscence technique was set up for the study of the reaction kinetics. The time-resolved IR fluorescence of the vibrationally excited CFzO photoproduct was used to measure the disappearance rate of these radicals. A kinetic mechanism is presented to account for the rate of production of CF20*. The CFzCl radical association reaction rate with Oz, evidence of a direct channel of photoproduct formation and its reaction rate, and the CFzO* collisional deactivation rate have been obtained.