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VUV photoabsorption in CF3X (X = Cl, Br, I) fluoro-alkanes

Eden, S.; Limão-Vieira, P.; Hoffmann, S. V. and Mason, N. (2006). VUV photoabsorption in CF3X (X = Cl, Br, I) fluoro-alkanes. Chemical Physics, 323(2-3) pp. 313–333.

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A new ultraviolet beam line has been constructed at the Institute of Storage Rings, University of Aarhus (ISA) to study the Photo- absorption of aeronomic molecules. In this paper, visible–UV spectra of CF3Cl and CF3Br are reported at high-resolution in the energy range 3.9–10.8 eV (320–115 nm). For both molecules, the present work provides the most reliable absolute cross-sections available at energies above the lowest lying electronic transition, the dissociative A band. Results are compared with earlier data including the recently published photoabsorption spectrum of CF3I [N.J. Mason, P. Limão-Vieira, S. Eden, P. Kendall, S. Pathak, A. Dawes, J. Ten- nyson, P. Tegeder, M. Kitajima, M. Okamoto, K. Sunohara, H. Tanaka, H. Cho, S. Samukawa, S.V. Hoffmann, D. Newnham, S.M. Spyrou, Int. J. Mass Spectrom. 223–224 (2003) 647]. The CF3I spectrum is revisited and new assignments made, including the extension of previously proposed ns Rydberg series. A detailed description of the ASTRID photoabsorption apparatus at ISA is provided for the first time.

Item Type: Journal Item
Copyright Holders: 2005 Elsevier B.V.
ISSN: 0301-0104
Keywords: synchrotron radiation; photoabsorption; CF3Cl; CF3Br; CF3I; electronic excitation; vibrational excitation; Rydberg series
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Research Group: Physics
Item ID: 25749
Depositing User: Sam Eden
Date Deposited: 05 Apr 2011 09:17
Last Modified: 07 Dec 2018 09:46
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