The vacuum ultraviolet (VUV) absorption spectrum (3.50–10.33 eV, 350–120 nm) of gaseous 2-vinyl furan has been measured for the first time using both synchrotron radiation source and electron energy loss spectroscopies with absolute cross section determinations. The He I photoelectron spectrum obtained at higher resolution than previously has been interpreted with the aid of semiempirical molecular orbital calculations. Three excited states of type are found responsible for an intense and structured first band observed between 4.2 and 5.8 eV (295–214 nm). Three triplet states were detected for the first time at about 2.46, 3.35, and 3.8 eV (477, 370, and 328 nm) which are, from the calculations, assigned as Some partial Rydberg series, linked to and are identified. The VUV absorption spectrum bears little resemblance to that of the parent compound, furan. The electronically excited molecule is found akin to a linear polyene.
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15 June 2004
Research Article|
June 15 2004
On the valence shell electronic spectroscopy of 2-vinyl furan
A. Giuliani;
A. Giuliani
Laboratoire de Spectroscopie d’Electrons Diffusés, Université de Liège, Institut de Chimie, Bât. B6c, B-4000 Sart-Tilman Liège, Belgium
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I. C. Walker;
I. C. Walker
School of Engineering and Physical Sciences, Heriot-Watt University, Riccarton, Edinburgh EH144AS, United Kingdom
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J. Delwiche;
J. Delwiche
Thermodynamique et Spectroscopie, Université de Liège, Institut de Chimie, Bât. B6c, B-4000 Sart-Tilman Liège, Belgium
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S. V. Hoffmann;
S. V. Hoffmann
Institute for Storage Ring Facilities, University of Århus, Ny Munkegade, DK-8000 Århus C, Denmark
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C. Kech;
C. Kech
Centre de Recherche du Cyclotron, Université de Liège, Bât. B30, Allée du 6 août, B-4000 Sart-Tilman Liège, Belgium
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P. Limão-Vieira;
P. Limão-Vieira
Department of Physics and Astronomy, University College London, Gower Street, London WC1 E6BT, United Kingdom
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N. J. Mason;
N. J. Mason
Department of Physics and Astronomy, University College London, Gower Street, London WC1 E6BT, United Kingdom
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M.-J. Hubin-Franskin
M.-J. Hubin-Franskin
Laboratoire de Spectroscopie d’Electrons Diffusés, Université de Liège, Institut de Chimie, Bât. B6c, B-4000 Sart-Tilman Liège, Belgium
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A. Giuliani
I. C. Walker
J. Delwiche
S. V. Hoffmann
C. Kech
P. Limão-Vieira
N. J. Mason
M.-J. Hubin-Franskin
Laboratoire de Spectroscopie d’Electrons Diffusés, Université de Liège, Institut de Chimie, Bât. B6c, B-4000 Sart-Tilman Liège, Belgium
J. Chem. Phys. 120, 10972–10982 (2004)
Article history
Received:
July 14 2003
Accepted:
March 18 2004
Citation
A. Giuliani, I. C. Walker, J. Delwiche, S. V. Hoffmann, C. Kech, P. Limão-Vieira, N. J. Mason, M.-J. Hubin-Franskin; On the valence shell electronic spectroscopy of 2-vinyl furan. J. Chem. Phys. 15 June 2004; 120 (23): 10972–10982. https://doi.org/10.1063/1.1738642
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