Evidence for shape resonance in the $C {}^{2}{Σ_{g}}^{+}$ band of C $O_{2}^{+}$ from angle-resolved photoelectron spectroscopy

1 June 1981

journal article
research article
Published by American Physical Society (APS) in Physical Review A

Vol. 23 (6) , 3316-3318
https://doi.org/10.1103/physreva.23.3316

Abstract

Angle-resolved photoelectron spectra were taken of the fourth band in C

O_{2}

(

C {}^{2}{Σ_{g}}^{+}

) as a function of photon energy using synchrotron radiation. It was found that the value of

β

dropped strongly in the vicinity of the photon energy of 42 eV. This result is shown to be in convincing agreement with theoretical predictions of a shape resonance, particularly when consideration is made of variations in internuclear distance.

Keywords

This publication has 19 references indexed in Scilit:

Chemical effects in the K-shell photoionizations of carbon monoxide, carbon dioxide and sulfur carbonyl
Chemical Physics, 1980
Wavelength and vibrational-state dependence of photoelectron angular distributions. Resonance effects in 5 σ photoionization of CO
The Journal of Chemical Physics, 1980
Use of the multiple-scattering method for calculating the asymmetry parameter in the angle-resolved photoelectron spectroscopy of N2, CO, CO2, COS, and CS2
The Journal of Chemical Physics, 1980
Shape-resonance-induced non-Franck-Condon vibrational intensities in 3 σ_gphotoionisation of N₂
Journal of Physics B: Atomic and Molecular Physics, 1980
Shape-Resonance-Enhanced Nuclear-Motion Effects in Molecular Photoionization
Physical Review Letters, 1979
Spectral variation of molecular photoelectron angular distributions: valence shells of N₂and CO
Journal of Physics B: Atomic and Molecular Physics, 1979
Absolute oscillator strengths for the shape resonances near the K edges of N₂and CO
Journal of Physics B: Atomic and Molecular Physics, 1977
Partial photoionization cross sections of $N_{2}$ and CO using synchrotron radiation
Physical Review A, 1977
Ultraviolet Photoionization Cross Sections for $N_{2}$ and CO
Physical Review Letters, 1976
Shape Resonances in $K$ -Shell Photoionization of Diatomic Molecules
Physical Review Letters, 1975

Evidence for shape resonance in theCΣg+2band of CO2+from angle-resolved photoelectron spectroscopy

Abstract

Keywords

Evidence for shape resonance in the $C {}^{2}{Σ_{g}}^{+}$ band of C $O_{2}^{+}$ from angle-resolved photoelectron spectroscopy