Article (Scientific journals)
The vacuum Ultraviolet Photoabsorption and Photoelectron Spectroscopy of Fluoroethylenes. The 1,1-, cis- and trans-C2H2FCl.
Tornow, G.; Locht, Robert; Kaufel, R. et al.
1990In Chemical Physics, 146, p. 115-128
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Keywords :
Synchrotron radiation; vacuum UV spectroscopy; HeI-, NeI-photoelectron Spectroscopy; MNDO calculations; C2H2FCl isomers
Abstract :
[en] The vacuum ultraviolet absorption spectra of the three fluorochloroethene isomers were measured in the 6-13 eV photon energy range. Additionally, the HeI and NeI photoelectron spectra were recorded. The assignment of the various photoelectron bands is based on MNDO calculations. The vaccum UV absorption spectral features were classified in terms of Rydberg series converging to the first and second ionization energy. Besides the typical pi-pi* transition, other valence transitions were observed and tentatively assigned. In the geminal isomer spectrum the dominant Rydberg series converge to the first ionization limit at 10.02 eV, in the cis and trans isomers the most intense Rydberg transitions converge to the second ionization energy at 11.87 and 12.03 eV respectively. The first ionization energies of these latter compounds, obtained by Rydberg series analysis, are 9.89 and 9.87 eV respectively. An assignment of the vibrational structure observed in both spectra is proposed.
Research center :
Laboratoire de Dynamique Moléculaire
Disciplines :
Chemistry
Author, co-author :
Tornow, G.;  Université de Liège - ULiège > de Chimie (Faculté des sciences) > Laboratoire de Dynamique Moléculaire (Sciences)
Locht, Robert  
Kaufel, R.
Baumgärtel, H.
Jochims, Hans-Werner
Language :
English
Title :
The vacuum Ultraviolet Photoabsorption and Photoelectron Spectroscopy of Fluoroethylenes. The 1,1-, cis- and trans-C2H2FCl.
Alternative titles :
[fr] La spectroscopie dans l'Ultraviolet sous vide et Photoélectronique des Fluoroétylènes. Les 1,1-, cis- et trans-C2H2FCl.
Publication date :
1990
Journal title :
Chemical Physics
ISSN :
0301-0104
Publisher :
Elsevier Science, Amsterdam, Netherlands
Volume :
146
Pages :
115-128
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
ARC - Actions de recherche concertées
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Commentary :
- Printed version of reprint available on request - Version imprimée du tiré-à-part disponible sur demande
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since 27 November 2008

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