Article (Scientific journals)
Kinetic Energy Release Distributions in the Dissociation of Energy-Selected Fluoroethene and 1,1-Difluoroethene Ions.
Güthe, F.; Locht, Robert; Leyh, Bernard et al.
1999In Journal of Physical Chemistry. A, 103, p. 8404-8412
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Keywords :
Threshold photoelectron-photoion coincidence; Photoionization; Breakdown diagram; TOF-kinetic energy analysis; C2H3F; 1,1-C2H2F2; HF-loss; F-loss
Abstract :
[en] The unimolecular dissociation of energy-selected fluoroethene and 1,1-difluoroethene ions has been investigated by threshold photoelectron photoion coincidence TPEPICO) technique. The breakdown diagrams of the 1,1-difluorethene and fluoroethene have been recorded between 13-22 eV. From time-of-flight (TOF) spectra, complete distributions of the kinetic energy released (KERD) in the dissociation of these energy-selected ions have been derived. For the HF-loss reaction channel, the KERD peaks at about 200 meV for low excitation energies but becomes thermal at higher excitation energies. For the F-loss channel, the KERD peaks at zero kinetic energy for low excitation energies but at about 200 meV for high excitation energy. The analysis of the KERD provides evidence that consecutive fragmentation takes place for the 1,1-difluoroethene at energies above 19 eV.
Research center :
Laboratoire de Dynamique Moléculaire.
Disciplines :
Chemistry
Author, co-author :
Güthe, F.
Locht, Robert  ;  Université de Liège - ULiège > Département de Chimie (Faculté des sciences) > Laboratoire de Dynamique Moléculaire (Sciences)
Leyh, Bernard  ;  Université de Liège - ULiège > Département de chimie (sciences) > Laboratoire de dynamique moléculaire
Baumgärtel, H.
Weitzel, K.-M.
Language :
English
Title :
Kinetic Energy Release Distributions in the Dissociation of Energy-Selected Fluoroethene and 1,1-Difluoroethene Ions.
Alternative titles :
[fr] Distributions d'énergie cinétique de la dissociation d'ions du Fluoroéthène et du 1,1-difluoroéthène.
Publication date :
1999
Journal title :
Journal of Physical Chemistry. A
ISSN :
1089-5639
eISSN :
1520-5215
Publisher :
American Chemical Society, Washington, United States - District of Columbia
Volume :
103
Pages :
8404-8412
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
Deutsche Forschungsgemainschaft, EUU Contract n° EU-HCM-CHGE-CT93-0027
Commentary :
- PDF-version of Editor's Postprint available on request - Version-pdf du tiré-à-part disponible sur demande
Available on ORBi :
since 18 November 2008

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