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Selection rules for collisional energy transfer in homonuclear diatomics. rotationally inelastic collisions

Authors
Journal
Chemical Physics Letters
0009-2614
Publisher
Elsevier
Publication Date
Volume
48
Issue
1
Identifiers
DOI: 10.1016/0009-2614(77)80221-2

Abstract

Abstract We have made a precise study of the circular polarisation of rotationally resolved features of laser-excited iodine. The J′ = 19, ν′ = 16 level of 3II + ou was excited using circularly polarised dye-laser fluorescence and a quantitative data on polarisation features representing inelastic transfer of Δ J′ = 30 was recorded. The experimental circular polarisation ratios were compared to those predicted by two totally conserving models, Δ M = 0 and Δθ = 0. The agreement between experimental points and the predictions based on the former lead to the formation of a new selection due on rotationally inelastic transfer namely, Δ M = 0.

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