Golubiatnikov, GY;
Polyansky, OL;
Zobov, NF;
Tennyson, J;
Ovsyannikov, RI;
Tretyakov, MY;
(2023)
H2O-HF dimer rotational spectra: New measurements and re-analysis.
Journal of Molecular Spectroscopy
, 397
, Article 111836. 10.1016/j.jms.2023.111836.
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Abstract
New measurements of the H2O-HF dimer high resolution absorption spectrum are performed using a relatively warm (240–260 K) equilibrium gas mixture with two complementary spectrometers: a video spectrometer and spectrometer with radio-acoustic detection. Positions of over hundred H2O-HF lines in the 158–345 GHz range are refined (their uncertainty is reduced by about order of magnitude) and several tens of lines are newly measured. These data are re-fitted together with previous measurements giving a refined set of constants of effective Hamiltonian which characterizes the dimer intermolecular dynamics. The new data improves significantly (from 100 to about 10 kHz) the accuracy of rotational constants corresponding to separate series of lines with fixed Ka.
| Type: | Article |
|---|---|
| Title: | H2O-HF dimer rotational spectra: New measurements and re-analysis |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.jms.2023.111836 |
| Publisher version: | https://doi.org/10.1016/j.jms.2023.111836 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | H2O-HF dimer, Millimeter and sub-millimeter wave spectra, High resolution, Rotational constants |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10179254 |
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