TITLE

Doppler spectroscopy of chlorine atoms generated from photodissociation of hydrogen chloride and methyl chloride at 157 and 193 nm

AUTHOR(S)
Matsumi, Yutaka; Das, Puspendu Kumar; Kawasaki, Masahiro
PUB. DATE
February 1990
SOURCE
Journal of Chemical Physics;2/1/1990, Vol. 92 Issue 3, p1696
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Hydrogen chloride and methyl chloride are photodissociated at 193 and 157 nm. Branching ratios for production of the resulting chlorine atoms in the 2P1/2 state relative to the 2P3/2 state are determined to be 0.20±0.02 at 193 nm and 0.35±0.05 at 157 nm for HCl and 0.23±0.02 at 193 nm and 0.26±0.05 at 157 nm for CH3Cl. The Doppler profiles of the chlorine fragments have been measured and are interpreted by assuming their anisotropy parameters and translational energies. HCl undergoes a perpendicular optical transition at each of the two wavelengths. For CH3Cl, the transition is parallel at 193 nm and a mixture of parallel and perpendicular types at 157 nm.
ACCESSION #
7664316

 

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