Abstract

Dissociative excitation of CH3NO2 and CH3OH by collisions with He (22S) has been studied by observing CH (A2Δ-X2Πr B2Σ-X2Πr, C2Σ+-X2Πr), OH(A2Σ-X2Π) and H(Balmer) emissions in the beam apparatus. The emission rate constants were determined. The nascent rovibrational distributions of CH(A, v'= 0–2) were obtained by means of computer simulation. The dissociative process and the formation mechanism of CH(A) and H∗ were studied. A two-body dissociation process through intermediate CH∗3 for CH(A) was suggested.

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