18 September 1995 Site-specific bimolecular chemistry: the reactivity of Cl atoms and butanes
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The reaction of chlorine atoms with selectively-deuterated butanes to form HCl and/or DCl under single-collision conditions has been studied. Photolysis of Cl2 with 351 or 308 nm light produces Cl atoms that subsequently abstract an H or D atom to form the corresponding hydrogen chloride product. HCl and DCl are detected via 2 plus 1 multiphoton ionization. For both n-butane and isobutane when viewed on a per hydrogen atom basis, the 'middle' site is preferred. When viewed on a per carbon site basis, this propensity is still observed in n- butane, but isobutane shows no dominant site specificity. Mechanistically, the data can be interpreted qualitatively in several ways, but currently the most convincing argument suggests that a direct, impulsive encounter is involved.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kenneth A. Cowen, Kenneth A. Cowen, Yu-Fong Yen, Yu-Fong Yen, K. Thomas Lorenz, K. Thomas Lorenz, Brent D. Koplitz, Brent D. Koplitz, } "Site-specific bimolecular chemistry: the reactivity of Cl atoms and butanes", Proc. SPIE 2548, Laser Techniques for State-Selected and State-to-State Chemistry III, (18 September 1995); doi: 10.1117/12.220838; https://doi.org/10.1117/12.220838

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