CHRISTOPHER ANNESLEY, ROBERT J. HOLIDAY, CHAN HO KWON, F. FLEMING CRIM, Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706.
Product state distributions and action spectra for the reaction of vibrationally state selected \chemCH3D with Cl, \chemCH3D( ) + Cl (CH2D + HCl) or \chem(CH3 + DCl), reveal the extent to which vibrational energy initially deposited in the reactant survives in the \chemCH2D and \chemCH3 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 cm-1 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 cm-1 to 5500 cm-1 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.