Mode-dependent vibrational autoionization of Rydberg states of NO{sub 2}. II. Comparing the symmetric stretching and the bending vibrations.

Journal Article · Sun Feb 08 04:00:00 EST 2004 · J. Chem. Phys.

DOI:https://doi.org/10.1063/1.1638379· OSTI ID:961460

Bell, P; Aguirre, F; Grant, E R; Pratt, S T

Triple-resonance excitation and high-resolution photoelectron spectroscopy are combined to characterize the mode selectivity of vibrational autoionization of the high Rydberg states of NO{sub 2}. Photoelectron spectra and vibrational branching fractions are reported for autoionizing Rydberg states converging to the NO{sub 2}{sup +}{Chi}{sup 1}{Sigma}{sub g}{sup +}(110) state, that is, with one quantum in the symmetric stretch, {nu}{sub 1}, and one quantum in the bending vibration, {nu}{sub 2}. These results indicate that autoionization proceeds most efficiently through the loss of one quantum from the symmetric stretch rather than from the bending vibration. The implications of this result are discussed in terms of the autoionization mechanism.

• Research Organization: Argonne National Laboratory (ANL)
• Sponsoring Organization: SC; NSF
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 961460
• Report Number(s): ANL/CHM/JA-47996
• Journal Information: J. Chem. Phys., Journal Name: J. Chem. Phys. Journal Issue: 6 ; Feb. 8, 2004 Vol. 120; ISSN JCPSA6; ISSN 0021-9606
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
AUTOIONIZATION
BENDING
EXCITATION
NITROGEN COMPOUNDS
PHOTOELECTRON SPECTROSCOPY
RYDBERG STATES
SPECTRA
VIBRATIONAL STATES