Abstract
The far-from-resonance transfers and the de-excitation processes in CO 2-NO and N 2O-NO systems have been studied by measuring fluorescence decay rate constants of CO 2 or N 2O excited to the (00°1) level by laser radiation. The diagrams giving the variations of these rate constants versus the molar fraction of CO 2 or N 2O have been set out. From these diagrams, the relative importance of the V-V transfer and V-T de-excitation rate constants is discussed. The transfer rate constants have been calculated from a semiclassical theory in which the interaction potential is a sum of four atom-atom Morse potentials. The disagreement observed between calculated and experimental values probably results from the attractive multipolar forces which the theory does not take into account.
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