Document Type
Article
Publication Date
2-1992
Publication Title
Physical Review A
Publisher
American Physical Society
Volume
45
Issue
3
First page number:
R1295
Last page number:
R1298
Abstract
Complete molecular valence-electron spectra were measured for CO. Unexpectedly, discrete lines at low kinetic energies were found, superimposed on a continuous energy spectrum representing direct double-ionization processes. The appearance of these lines is discussed in the context of the formation of the C++O+ ion pair near its associated threshold at 38.4 eV. It is ascribed to valence-excited repulsive (CO+)* states, which dissociate to a large part rapidly into atomic fragments before electronic relaxation takes place. From our spectra, partial cross sections for the different processes leading to dissociative valence double ionization are derived.
Controlled Subject
Carbon monoxide; Carbon monoxide--Spectra; Photoelectron spectroscopy; Photoionization
Disciplines
Atomic, Molecular and Optical Physics | Physical Chemistry
File Format
File Size
245 KB
Language
English
Permissions
Copyright American Physical Society. Used with permission.
Rights
IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/
Repository Citation
Becker, U.,
Hemmers, O.,
Langer, B.,
Menzel, A.,
Wehlitz, R.,
Peatman, W. B.
(1992).
Evidence for Atomic Processes in Molecular Valence Double Ionization.
Physical Review A, 45(3),
R1295-R1298.
https://digitalscholarship.unlv.edu/hrc_fac_articles/56