Precision spectroscopy and comprehensive analysis of perturbations in the A1∏(v=0) state of 13C18O
Name
1808.02476.pdf
Description
Accepted version
Size
2.25 MB
Format
Adobe PDF
Checksum (MD5)
c07e74b8c6f1d17390ca5f136ab62e38
Author(s)
Hakalla, R.
Trivikram, T.M.
Heays, A. N.
Salumbides, E. J.
de Oliveira, N.
Field, R. W.
Ubachs, W.
Alternative Title
Precision spectroscopy and comprehensive analysis of perturbations in the A[superscript 1]∏(v=0) state of [superscript 13]C[superscript 18]O
Date Issued
July 2018
Journal
Molecular Physics
Publisher
Informa UK Limited
Citation
Hakalla, R., et al. "Precision spectroscopy and comprehensive analysis of perturbations in the A1∏(v=0) state of 13C18O." Molecular Physics 117, 1 (July 2018): p. 79-96 doi 10.1080/00268976.2018.1495848 ©2018 Author(s)
Version
Author's final manuscript
Abstract
We have reinvestigated the A[chemical formula] level of 13C18O using new high-resolution spectra obtained via multi-photon laser excitation as well as with synchrotron-based Fourier-transform absorption spectroscopy of the A[chemical formula], e[chemical formula], d[chemical formula], a[chemical formula], and a[chemical formula] bands. In addition, Fourier-transform emission spectroscopy in the visible range is performed on the[chemical formula] band. Spectra of the B[chemical formula] band are measured in order to tie information from the latter emission data to the level structure of A[chemical formula]. 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[chemical formula] up to J=43. All information, in total over 900 spectral lines, was included in an effective Hamiltonian analysis of the A[chemical formula] levels that are directly perturbed by the e[chemical formula], d[chemical formula], a[chemical formula], D[chemical formula], I[chemical formula] close-lying levels and the e[chemical formula], d[chemical formula], a[chemical formula] remote levels, as well being indirectly influenced by the a[chemical formula] 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.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
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DOI of Published Version
https://doi.org/10.1080/00268976.2018.1495848
