Millimetre-wave spectrum of anti-13C1 and 13C2 isotopologues of ethanol

The rotational spectra of the two monosubstituted 13C isotopologues of the anti conformer of ethanol have been measured between 80–800GHz using three different spectrometers at the Cologne Laboratory Astrophysics group. The dataset was constrained for fitting with a standard Watson-S reduction Hamil...

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Veröffentlicht in:	Journal of quantitative spectroscopy & radiative transfer 2012-07, Vol.113 (11), p.1148-1154
Hauptverfasser:	Bouchez, Aurelia, Walters, Adam, Müller, Holger S.P., Ordu, Matthias, Lewen, Frank, Koerber, Monika, Bottinelli, Sandrine, Endres, Christian P., Schlemmer, Stephan
Format:	Artikel
Sprache:	eng
Schlagworte:	13C Ethanol Isotopologues Laboratory spectroscopy Millimetre-wave Radio-astronomy
Online-Zugang:	Volltext
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Zusammenfassung:	The rotational spectra of the two monosubstituted 13C isotopologues of the anti conformer of ethanol have been measured between 80–800GHz using three different spectrometers at the Cologne Laboratory Astrophysics group. The dataset was constrained for fitting with a standard Watson-S reduction Hamiltonian by rejecting transitions from high-lying states showing significant perturbation with the gauche states and by averaging some small methyl torsional splits. This treatment is compatible with the needs for a first astrophysical research for which an appropriate set of predictions is given. ► Rotational spectrum 80–800GHz of the anti conformers of CH313CH2OH and 13CH3CH2OH. ► A summary of the astrophysical interest of the work carried out is given. ► A comprehensive set of predictions will be provided on CDMS.
ISSN:	0022-4073 1879-1352
DOI:	10.1016/j.jqsrt.2012.02.025