Document Type
Article
Publication Date
5-2001
Publication Title
Physical Review Letters
Publisher
American Physical Society
Volume
86
Issue
20
First page number:
4504
Last page number:
4507
Abstract
Anion-yield spectroscopy using x rays is shown to be a selective probe of molecular core-level processes, providing unique experimental verification of shape resonances. For CO, partial anion and cation yields are presented for photon energies near the C K edge. The O- yield exhibits features above threshold related only to doubly excited states, in contrast to cation yields which also exhibit pronounced structure due to the well-known σ* shape resonance. Because the shape resonance is completely suppressed for O-, anion spectroscopy thus constitutes a highly selective probe, yielding information unobtainable with absorption or electron spectroscopy.
Controlled Subject
Carbon monoxide; Nuclear excitation; Photoionization; X-ray Spectroscopy
Disciplines
Atomic, Molecular and Optical Physics | Physical Chemistry
File Format
File Size
172 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
Stolte, W. C.,
Hansen, D. L.,
Piancastelli, M. N.,
Dominguez-Lopez, I.,
Rizvi, A.,
Hemmers, O.,
Wang, H.,
Schlachter, A. S.,
Lubell, M. S.,
Lindle, D. W.
(2001).
Anionic Photofragmentation of CO: A Selective Probe of Core-Level Resonances.
Physical Review Letters, 86(20),
4504-4507.
https://digitalscholarship.unlv.edu/hrc_fac_articles/30