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Absolute line intensities for oxirane from 1420 to 1560 cm-1

Absolute individual line intensities of numerous transitions of the fundamental m2 and m10 bands of oxirane (ethylene oxide, cyc-C2H4O) have been measured in the 1420–1560 cm1 region using seven high-resolution Fourier transform spectra recorded at 0.002 cm1 resolution and various pressures. These line intensities were least-squares fit using a theoretical model which takes into account the vibration–rotation interactions linking the upper state rotational levels, and, therefore, accurate rotational expansion of the transition moments of the m2 and m10 vibrational bands were derived. Using the coefficients obtained in the fitting, a line list of both bands has been generated. Comparisons with measurements taken at low resolution of the m2/m10 dyad system show excellent agreement.

Auteur(s) : F. Kwabia Tchanaa, M. Ngom, A. Perrina, J.-M. Flauda, W.J. Lafferty, S.A. Ndiaye, El. A. Ngom
Pages : 1-4
Année de publication : 2013
Revue : Journal of Molecular Spectroscopy
N° de volume : 292
Type : Article
Mise en ligne par : NDIAYE Seydi Ababacar