Tennyson, Jonathan;
(2023)
Empirical rovibronic energy levels of C3.
Molecular Physics
, Article e2276912. 10.1080/00268976.2023.2276912.
(In press).
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Abstract
The carbon trimer, C3 also known as propadienediylidene, is a quasi-linear molecule with an unusual electronic structure and a very flat bending potential in its ground electronic state. C3 is an important species in astrophysics and carbon plasmas. Observed transition wavenumbers within and between the X˜1Σ+g and A˜1Πu states of C3 are extracted from 21 papers and then subjected to a Measured Active Rotational-Vibrational Energy Levels (MARVEL) analysis: a corrected list of 4940 transitions are inverted to yield 1887 empirical energy levels. Uncertainties for these levels are determined using a newly implemented bootstrap method. These levels will provide input for developing a full spectroscopic model for C3 which can used to generate a line list for the X˜1Σ+g and A˜1Πu states.
| Type: | Article |
|---|---|
| Title: | Empirical rovibronic energy levels of C3 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1080/00268976.2023.2276912 |
| Publisher version: | https://doi.org/10.1080/00268976.2023.2276912 |
| Language: | English |
| Additional information: | Copyright © 2023 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The terms on which this article has been published allow the posting of the Accepted Manuscript in a repository by the author(s) or with their consent. |
| Keywords: | Rovibronic energy levels; carbon trimer; MARVEL |
| 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/10181410 |
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