Multichannel interactions in the resonant photoionization of HCl

Journal Article · Tue Dec 01 04:00:00 EST 1987 · J. Chem. Phys.; (United States)

DOI:https://doi.org/10.1063/1.453439· OSTI ID:6011989

White, M G; Leroi, G E; Ho, M; Poliakoff, E D

Vibrational state distributions of the A /sup 2/..sigma../sup +/ excited state of HCl/sup +/ were measured by dispersed fluorescence following resonant photoionization. Autoionization of levels excited at the NeI resonance line strongly influence the vibrational branching ratios of the A /sup 2/..sigma../sup +/ state although not in accord with the propensity rule expected for vibrational autoionization. Other measurements utilizing total fluorescence yields and synchrotron radiation confirm the presence of competing dissociation channels for autoionizing Rydberg states converging to the A /sup 2/..sigma../sup +/ limit. These results are discussed in terms of the multichannel interactions responsible for determining the observed ion and fragment product distributions.

• Research Organization: Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6011989
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 87:11; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
AUTOIONIZATION
BREMSSTRAHLUNG
CHARGED PARTICLES
DISTRIBUTION
ELECTROMAGNETIC RADIATION
ENERGY LEVELS
EXCITED STATES
FLUORESCENCE
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
IONIZATION
IONS
LUMINESCENCE
MOLECULAR IONS
PHOTOIONIZATION
RADIATIONS
RYDBERG STATES
SYNCHROTRON RADIATION
VIBRATIONAL STATES