Fluorescence Decay and Non-Radiative Relaxation Dynamics of the $A^{2}\Sigma^{+}$ States of OH-Ar and OD-Ar

Kulkarni, S. K.; Lin, Y.; Heaven, M. C.

Fluorescence Decay and Non-Radiative Relaxation Dynamics of the $A^{2}\Sigma^{+}$ States of OH-Ar and OD-Ar

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Date

1990

Authors

Kulkarni, S. K.

Lin, Y.

Heaven, M. C.

Publisher

Ohio State University

Abstract

Fluorescence decay lifetimes of electronically excited OH-Ar and OD-Ar van der Waals complexes have been measured under conditions. The lifetimes for two vibronic levels of $O D (A, v' =0)− A r$ were identical to that of $O D (A, v' =0)$ , indicating that the A-X transition moment was unaffected by interactions between OD(A) and Ar. Lifetimes for two vibronic levels of $O H (A, v' =0)− A r$ were slightly shorter than that of $O H (A, v' =0)$ . This has been interpreted in terms of a weak predissociation $(O H (A, v' =0)− A r − O H (X, v' −13)+ A r)$ . Implications of these lifetime measerments with regard to the assignment of recently reported LIF and emission spectra for OH/D-Ar will be discussed

Description

Work supported by AFOSR under grant 88-0249

Author Institution: Department of Chemistry, Emory University

URI

http://hdl.handle.net/1811/18293

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Abstracts of OSU International Symposium on Molecular Spectroscopy 1990-1999

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