Zobov, NF;
Coles, PA;
Ovsyannikov, RI;
Kyuberis, AA;
Hargreaves, RJ;
Bernath, PF;
Tennyson, J;
... Polyansky, OL; + view all
(2018)
Analysis of the red and green optical absorption spectrum of gas phase ammonia.
Journal of Quantitative Spectroscopy and Radiative Transfer
, 209
pp. 224-231.
10.1016/j.jqsrt.2018.02.001.
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Abstract
Room temperature NH 3 absorption spectra recorded at the Kitt Peak National Solar Observatory in 1980 are analyzed. The spectra cover two regions in the visible: 15,200 – 15,700 cm−1 and 17,950 – 18,250 cm−1. These high overtone rotation-vibration spectra are analyzed using both combination differences and variational line lists. Two variational line lists were computed using the TROVE nuclear motion program: one is based on an ab initio potential energy surface (PES) while the other used a semi-empirical PES. Ab initio dipole moment surfaces are used in both cases. 95 energy levels with J=1−7 are determined from analysis of the experimental spectrum in the 5ν NH (red) region and 46 for 6ν NH (green) region. These levels span four vibrational bands in each of the two regions, associated with stretching overtones.
| Type: | Article |
|---|---|
| Title: | Analysis of the red and green optical absorption spectrum of gas phase ammonia |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.jqsrt.2018.02.001 |
| Publisher version: | http://doi.org/10.1016/j.jqsrt.2018.02.001 |
| Language: | English |
| Additional information: | Copyright © 2018 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license. (http://creativecommons.org/licenses/by/4.0/) |
| Keywords: | Ammonia, Vibration-rotation, VisibleLine list |
| 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.ucl.ac.uk/id/eprint/10046571 |
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