VIBRATIONAL ENERGY DISPOSAL AND RELATIVE REACTIVITY FOR THE VIBRATIONALLY DRIVEN REACTION OF $CH_{3}D$ WITH Cl IN THE C-H C-D COMBINATION REGION
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Date
2007
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Ohio State University
Abstract
Product state distributions and action spectra for the reaction of vibrationally state selected \chem{CH_{3}D} with Cl, \chem{CH_{3}D(\nu) + Cl \longrightarrow (CH_{2}D + HCl)} or \chem{(CH_{3} + DCl)}, reveal the extent to which vibrational energy initially deposited in the reactant survives in the \chem{CH_{2}D} and \chem{CH_{3}} products as well the reactivity of different excited vibrational states. There have been several studies of various deuterated methanes with different bonds excited. Most recently, our lab studied the C-H stretch overtone in the 6000 \wn region, where we found further support for the spectator model. We found that one C-H oscillator survived into the products from states that are composed of 2 separate C-H oscillators as opposed to an overtone in one oscillator. We are studying the lower energy 5000 \wn to 5500 \wn region, where we can excite combination bands that involve C-H and C-D motion to determine the relative effect on reactivity of each vibrational mode in this region.
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Author Institution: Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706