Electronic excitation of tetrafluoroethylene, C2F4

tetrafluoroethylene; C2F4; photoabsorption; synchrotron radiation; electron energy loss spectroscopy; electronic and vibrational excitation; Rydberg series; photoelectron spectroscopy

Abstract :

[en] The VUV photoabsorption spectrum of tetrafluoroethylene is reported in the wavelength range; 115-320 nm (10.8-3.9 eV). The result is compared with high-energy electron energy loss spectra (EELS). Electrons of incident energy 100 and 30 eV are analysed post-interaction at scattering angles of 5degrees, 15degrees and 30degrees in the energy loss range; 3.0-15.7 eV. Both the photoabsorption and EELS measurements represent the highest resolution data yet reported. The spectra are found to be in good agreement with each other and generally consistent with previous experimental and theoretical work. New photoabsorption features are observed and Rydberg and vibrational assignments suggested. The He(I) photoelectron spectrum is recorded from 9.7 to 20.9 eV and compared to earlier work. New vibrational structure is observed in the first photoelectron band. Implications relevant to the production of CF2 radicals by photon and electron impact are discussed. (C) 2003 Elsevier B.V. All rights reserved.

Disciplines :

Chemistry
Physics

Author, co-author :

Eden, S.

Limao-Vieira, P.

Kendall, P. A.

Mason, N. J.

Delwiche, Jacques ; Université de Liège - ULiège > Services généraux (Faculté des sciences) > Relations académiques et scientifiques (Sciences)

Hubin-Franskin, Marie-Jeanne ; Université de Liège - ULiège > Département de chimie (sciences) > Chimie physique

Tanaka, T.

Kitajima, M.

Tanaka, H.

Cho, H.

Hoffmann, S. V.

Language :

English

Title :

Electronic excitation of tetrafluoroethylene, C2F4

Publication date :

16 February 2004

Journal title :

Chemical Physics

ISSN :

0301-0104

Publisher :

Elsevier, Netherlands

Volume :

297

Issue :

1-3

Pages :

257-269

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 08 September 2021

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