Collisional and Dissociative Processes Involving Molecular Free Radicals

摘要

A number of experimental studies of the dynamics of bimolecular and unimolecularcollisional processes and spectroscopic studies involving molecular free radicals of importance in combustion and atmospheric chemistry have been carried out. These include study of the reaction of Cl atoms with small hydrocarbons, the formation of NCO in the CN + O2 reaction, predissociation of electronically excited NCO, and photodissociation of vibrationally excited halomethanes. The interaction of the HCO radical with Ar was probed through electronic spectroscopy of the weakly bound Ar-HCO complex. A search for the laser fluorescence excitation of the FCO radical was unsuccessful, and bands previously attributed by other workers to this species were definitively assigned to the CH2CFO radical.