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Proceedings Paper

State-to-state predissociation dynamics of CN-Ne
Author(s): Suli Fei; Michael C. Heaven
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Paper Abstract

Electronic spectra and predissociation dynamics for the CN-Ne van der Waals complex are reported. From an analysis of the bands associated with the CN B-X transition, we conclude that the equilibrium geometry of the complex is `T'-shaped in the ground state, and linear in the excited state. Electronic and vibrational predissociation of CN(B)-Ne was found to be too slow to compete with radiative decay. Excitation spectra for the CN-Ne A-X transition were strongly influenced by predissociation processes. Two channels were characterized for CN(A2$PRD, v equals 3)-Ne. One was spin-orbit induced (CN(A2$PRD1/2, v equals 3)-Ne yields CN(A2$PRD3/2, v equals 3) + Ne), and the other mediated by interstate transfer (CN(A2$PRD3/2, v equals 3)-Ne yields CN(X, 2(Sigma) +, v equals 7) + Ne). The former was approximately 104 times faster than the latter. Symmetry based propensities were evident in the rotational population distributions of the CN fragments.

Paper Details

Date Published: 22 April 1993
PDF: 13 pages
Proc. SPIE 1858, Laser Techniques for State-Selected and State-to-State Chemistry, (22 April 1993); doi: 10.1117/12.143096
Show Author Affiliations
Suli Fei, Emory Univ. (United States)
Michael C. Heaven, Emory Univ. (United States)


Published in SPIE Proceedings Vol. 1858:
Laser Techniques for State-Selected and State-to-State Chemistry
Cheuk Yiu Ng, Editor(s)

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