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A Crossed Molecular Beam Imaging Study of the O( 1 D 2 )+HCl→OH+Cl( 2 P J =3/2, 1/2 ) Reaction
Author(s) -
Kohguchi Hiroshi,
Suzuki Toshinori
Publication year - 2006
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200500650
Subject(s) - crossed molecular beam , excited state , chemistry , excitation , ion , atomic physics , ground state , beam (structure) , molecular beam , analytical chemistry (journal) , crystallography , molecule , physics , organic chemistry , quantum mechanics , chromatography , optics
A crossed molecular beam study is presented for the O( 1 D 2 )+HCl→OH+Cl( 2 P J ) reaction at the collision energy of 6 kcal mol −1 . State‐resolved doubly differential cross sections are obtained for the Cl( 2 P J =3/2 ) and Cl*( 2 P J =1/2 ) products by velocity‐map ion imaging. Both products are slightly more forward scattered, which suggests a reaction mechanism without a long‐lived intermediate in the ground electronic state. A small fraction (23 %) of the energy release into the translational degree of freedom indicates strong internal excitation of the counterpart OH radical. The contribution of the electronic excited states of OHCl to the overall reaction is also examined from the doubly differential cross sections.