Abstract

The dynamics of adsorption and KrCl laser-induced resonant photoprocesses in physisorbed dimethylcadmium (DMCd) molecules has been examined. The desorption of DMCd and its CdCH 3, Cd, CH 3 fragments in both neutral and ionic forms was observed. The dependences of the desorption yields on laser fluence and on DMCd gas exposure time, as well as the time-of-flight (TOF) profiles of desorption signals, have been measured. Multimode structures of the TOF profiles and nonmonotonic behavior of the fluence and kinetic dependences of CH 3 radicals and Cd-containing ions have been found. The mechanisms of the laser-stimulated processes are discussed.

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