Abstract

Vibrational and rotational energy disposal in CS(A1Π), produced through monochromatic vacuum u.v. photodissociation of CS2, has been studied under effectively collision-free conditions and at considerably higher resolution than in earlier studies by Lee and Judge and Okabe. Vibrational energy disposal in CSe(D1Π) produced from CSe2 has also been studied under similar conditions. The results, which indicate the importance of Franck–Condon considerations, are discussed qualitatively in terms of the formalism developed by Morse et al. Estimates of the overall transition moments, Rv′v″, and Franck–Condon factors for CS(A→X) are presented which confirm recent calculations by Coxon et al. and measurements by Carlson et al. and necessitate a revision of earlier data obtained under lower resolution by Lee and Judge.

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