Photodissociation of HCl at 193.3 nm: Spin{endash}orbit branching ratio

Journal Article · Fri Aug 01 00:00:00 EDT 1997 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.474494· OSTI ID:664411

Zhang, J; Dulligan, M; Wittig, C ^[1]

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1. Department of Chemistry, University of Southern California, Los Angeles, California 90089-0482 (United States)

HCl was photodissociated by ultraviolet (uv) radiation at 193.3 nm. Time-of-flight spectra of the hydrogen atom fragment provided the spin{endash}orbit state distribution of the chlorine fragment, [Cl({sup 2}P{sub 1/2})]/[Cl({sup 2}P{sub 3/2})]=0.69{plus_minus}0.02, in excellent agreement with recent theoretical studies. The H atom angular distribution studied by changing the uv photolysis laser polarization confirmed a dominant A{sup 1}{Pi}{l_arrow}X{sup 1}{Sigma}{sup +} electronic transition in the photoexcitation process ({beta}={minus}1.01{plus_minus}0.04 and {beta}{sup {asterisk}}={minus}0.94{plus_minus}0.07). {copyright} {ital 1997 American Institute of Physics.}

• DOE Contract Number: FG03-85ER13363
• OSTI ID: 664411
• Journal Information: Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Journal Issue: 5 Vol. 107; ISSN JCPSA6; ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
ANGULAR DISTRIBUTION
BRANCHING RATIO
CHLORINE
ELECTRONIC STRUCTURE
FAR ULTRAVIOLET RADIATION
HYDROCHLORIC ACID
HYDROGEN
L-S COUPLING
PHOTOLYSIS
RYDBERG STATES
TIME-OF-FLIGHT METHOD