# EXTENSION OF TIME-RESOLVED DOUBLE RESONANCE STUDIES OF ROTATIONAL ENERGY TRNASFER TO AN OBLATE SYMMETRIC ROTOR

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/19897

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 Title: EXTENSION OF TIME-RESOLVED DOUBLE RESONANCE STUDIES OF ROTATIONAL ENERGY TRNASFER TO AN OBLATE SYMMETRIC ROTOR Creators: Beaky, M. M.; Skatrud, David D. Issue Date: 2000 Publisher: Ohio State University Abstract: Time-resolved double resonance spectroscopy is a powerful technique for studying intramolecular energy transfer mechanisms. Previous studies of rotational energy transfer in the prolate symmetric tops $CH_{3} F$ and $CH_{3} Cl$ have culminated in a quantitative and predictive model for rovibrational relaxation in these molecules which reduces the inherent complexity of the problem to only a small number of adjustable parameters. In the oblate symmetric top $CDF_{3}$, the spacing between K levels is much closer than the spacing between J levels, while for $CH_{3}F$ and $CH_{3} Cl$ the opposite is true. The goal of the current study is to understand exactly what effect this has on the relative importance of the pathways for rovibrational relaxation in $CDF_{3}$, because it can provide a stringent test both of the existing model and of our current state of understanding of energy transfer mechanisms in polyatomic molecules. Recent experimental results will be presented. Description: Author Institution: Department of Physics, Duke University; Physics Division, U.S. Army Research Office URI: http://hdl.handle.net/1811/19897 Other Identifiers: 2000-TH-07