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Electronic excitation and optical cross sections of methylamine and ethylamine in the UV–VUV spectral region

Hubin-Franskin, M-J.; Delwiche, J.; Giuliani, A.; Ska, M-P.; Motte-Tollet, F.; Walker, I.C.; Mason, N.J.; Gingell, J.M. and Jones, N.C. (2002). Electronic excitation and optical cross sections of methylamine and ethylamine in the UV–VUV spectral region. Journal of Chemical Physics, 116(21) pp. 9261–9268.

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Abstract

High resolution UV-VUV photon absorption spectra of methylamine and ethylamine have been recorded between 5.0-9.0 eV (250-140 nm) using synchrotron radiation. In methylamine, the energies of the absorption bands are confirmed as centered at 5.7, 7.2, and 8.7 eV, respectively. In ethylamine the band centers are 5.8, 7.0, and 7.9 eV, respectively; the last band is seen here for the first time. Most of the transitions exhibit rich fine structure dominated by vibrational progressions involving excitation of an amino wagging vibration. The absolute photoabsorption oscillator strengths have been measured by photon absorption over the 5-9 eV range and by dipolar electron energy loss spectroscopy from 5-14 eV (250-90 nm).

Item Type: Journal Article
ISSN: 0021-9606
Keywords: ethylamines; photons; methylamines
Academic Unit/Department: Science > Physical Sciences
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
eSTEeM
Item ID: 4468
Depositing User: Users 6827 not found.
Date Deposited: 06 Jul 2006
Last Modified: 05 Mar 2014 10:29
URI: http://oro.open.ac.uk/id/eprint/4468
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