Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Yields and Time-of-Flight Spectra of Neutral High-Rydberg Fragments at the K Edges of the CO2 Molecule

Kivimäki, Antti LU ; Stråhlman, Christian LU ; Wasowicz, Tomasz J. ; Kettunen, J. A. LU and Richter, Robert (2016) In The Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory 120(25). p.4360-4367
Abstract

We have studied the production of neutral fragments in high-Rydberg (HR) states at the C 1s and O 1s edges of the CO2 molecule by performing two kinds of experiments. First, the yields of neutral HR fragments were measured indirectly by ionizing such fragments in a static electric field and by collecting resulting singly charged positive ions as a function of the photon energy. Such measurements reveal not only excitations below the core ionization thresholds but also thresholds for single core-hole and shakeup photoionization. Second, we obtained the mass spectra of neutral HR fragments at selected photon energies by exploiting pulsed field ionization; they show atomic fragments C(HR) and O(HR). We discuss dissociation... (More)

We have studied the production of neutral fragments in high-Rydberg (HR) states at the C 1s and O 1s edges of the CO2 molecule by performing two kinds of experiments. First, the yields of neutral HR fragments were measured indirectly by ionizing such fragments in a static electric field and by collecting resulting singly charged positive ions as a function of the photon energy. Such measurements reveal not only excitations below the core ionization thresholds but also thresholds for single core-hole and shakeup photoionization. Second, we obtained the mass spectra of neutral HR fragments at selected photon energies by exploiting pulsed field ionization; they show atomic fragments C(HR) and O(HR). We discuss dissociation pathways leading to the production of neutral HR fragments in core excitation and ionization of CO2.

(Less)
Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
The Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory
volume
120
issue
25
pages
8 pages
publisher
The American Chemical Society (ACS)
external identifiers
  • pmid:27276338
  • wos:000379456300012
  • scopus:84976907420
ISSN
1089-5639
DOI
10.1021/acs.jpca.6b04495
language
English
LU publication?
yes
id
30af7c7f-f42e-4750-8534-f8644625757e
date added to LUP
2017-01-19 09:34:38
date last changed
2024-01-04 20:58:04
@article{30af7c7f-f42e-4750-8534-f8644625757e,
  abstract     = {{<p>We have studied the production of neutral fragments in high-Rydberg (HR) states at the C 1s and O 1s edges of the CO<sub>2</sub> molecule by performing two kinds of experiments. First, the yields of neutral HR fragments were measured indirectly by ionizing such fragments in a static electric field and by collecting resulting singly charged positive ions as a function of the photon energy. Such measurements reveal not only excitations below the core ionization thresholds but also thresholds for single core-hole and shakeup photoionization. Second, we obtained the mass spectra of neutral HR fragments at selected photon energies by exploiting pulsed field ionization; they show atomic fragments C(HR) and O(HR). We discuss dissociation pathways leading to the production of neutral HR fragments in core excitation and ionization of CO<sub>2</sub>.</p>}},
  author       = {{Kivimäki, Antti and Stråhlman, Christian and Wasowicz, Tomasz J. and Kettunen, J. A. and Richter, Robert}},
  issn         = {{1089-5639}},
  language     = {{eng}},
  month        = {{06}},
  number       = {{25}},
  pages        = {{4360--4367}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{The Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory}},
  title        = {{Yields and Time-of-Flight Spectra of Neutral High-Rydberg Fragments at the K Edges of the CO<sub>2</sub> Molecule}},
  url          = {{http://dx.doi.org/10.1021/acs.jpca.6b04495}},
  doi          = {{10.1021/acs.jpca.6b04495}},
  volume       = {{120}},
  year         = {{2016}},
}