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Angular Distributions for the Cl + C 2 H 6 → HCl + C 2 H 5 Reaction Observed via Multiphoton Ionization of the C 2 H 5 Radical

1998; American Chemical Society; Volume: 102; Issue: 13 Linguagem: Inglês

10.1021/jp9801828

1520-5215

S. Alex Kandel, T. Peter Rakitzis, Topaz Lev-On, Richard N. Zare,

Mass Spectrometry Techniques and Applications

The title reaction has been studied by observing the ethyl radical product by means of resonance-enhanced multiphoton ionization (REMPI) that proceeds at 242 nm via highly dissociative Rydberg states. The method of core extraction was employed to measure the speed and spatial anisotropy distributions of the C2H5 product from which the differential cross section and the internal energy distribution of the products were deduced. The C2H5 product exhibits broad scattering that peaks sideways, and the internal modes of this product are not significantly excited. These results agree closely with those found from a previous study of the title reaction in which the HCl product was detected by REMPI under the same conditions. Additionally, we report REMPI detection of the propyl radical product in the analogous Cl + C3H8 reaction.