Abstract
We have reinvestigated the A (Formula presented.) level of 13 C 18 O using new high-resolution spectra obtained via multi-photon laser excitation as well as with synchrotron-based Fourier-transform absorption spectroscopy of the A (Formula presented.), e (Formula presented.), d (Formula presented.), a (Formula presented.), and a (Formula presented.) bands. In addition, Fourier-transform emission spectroscopy in the visible range is performed on the (Formula presented.) band. Spectra of the B (Formula presented.) band are measured in order to tie information from the latter emission data to the level structure of A (Formula presented.). The high pressures in the absorption cell at the synchrotron and the high temperatures in the emission discharge permitted monitoring of high rotational quantum levels in A (Formula presented.) up to J=43. All information, in total over 900 spectral lines, was included in an effective Hamiltonian analysis of the A (Formula presented.) levels that are directly perturbed by the e (Formula presented.), d (Formula presented.), a (Formula presented.), D (Formula presented.), I (Formula presented.) close-lying levels and the e (Formula presented.), d (Formula presented.), a (Formula presented.) remote levels, as well being indirectly influenced by the a (Formula presented.) state. The influence of 9 further perturber levels and their interactions was investigated and are not significant for reproducing the present experimental data. This analysis leads to a much improved description in terms of molecular constants and interaction parameters, compared to previous studies of the same energy region for other CO isotopologues.
Original language | English |
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Pages (from-to) | 79-96 |
Number of pages | 18 |
Journal | Molecular Physics |
Volume | 117 |
Issue number | 1 |
Early online date | 25 Jul 2018 |
DOIs | |
Publication status | Published - 2 Jan 2019 |
Keywords
- carbon monoxide
- deperturbation analysis
- Fourier-transform spectroscopy
- isotopologues
- Laser spectroscopy
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Dive into the research topics of 'Precision spectroscopy and comprehensive analysis of perturbations in the A 1 ∏(v = 0) state of 13 C 18 O'. Together they form a unique fingerprint.Datasets
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Precision spectroscopy and comprehensive analysis of perturbations in the A1∏(v = 0) state of 13C18O
Hakalla, R. (Contributor), Trivikram, T. M. (Contributor), Heays, A. N. (Contributor), Salumbides, E. (Contributor), Oliveira, N. D. (Contributor), Field, R. W. (Contributor) & Ubachs, W. (Contributor), Unknown Publisher, 2 Jan 2019
DOI: 10.6084/m9.figshare.6864962.v1, https://tandf.figshare.com/articles/Precision_spectroscopy_and_comprehensive_analysis_of_perturbations_in_the_A_sup_1_sup_i_v_i_0_state_of_sup_13_sup_C_sup_18_sup_O/6864962/1
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