EXPERIMENTAL DETERMINATION OF ELECTRONIC TRANSITION MOMENTS IN HYDRIDES: OH(A-X), CH(A-X), AND CH(B-X)
Loading...
Date
1995
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
New band intensity ratios have been measured for the OH(A-X), CH(A-X), and CH(B-X) band systems, using laserinduced fluorescence in low pressure flames. We use these ratios to directly fit electronic transition moments for each system expressed in polynomial form, without recourse to the r-centroid approximation. Weak off-diagonal bands are included in the fit. This provides a new degree of accuracy in the transition moments, and has been used to calculate absorption and emission coefficients. The results will be compared with ab initio moments, and applications to determination of rotational temperatures and absolute concentrations of CH using both band systems will be given.
Description
The OH work was supported by NASA and NSF-Atm, and the CH work by the Gas Research Institute.
Author Institution: SRI International, Menlo Park, CA 94025.
Author Institution: SRI International, Menlo Park, CA 94025.