First analysis of the rotationally-resolved ν2 and 2ν2-ν2 bands of sulfur dioxide, 33S16O2
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Univ. Paris-Est Creteil (UPEC), Paris (France); Univ. of Paris Diderot (France); Inst. Pierre Simon Laplace (France)
- National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
A Fourier transform spectrum of sulfur dioxide 33S16O2 has been recorded in the 18.3 μm spectral region at a resolution of 0.002 cm$$-$$1 using a Bruker IFS 125HR spectrometer leading to the observation of the ν2 and 2ν2-ν2 vibrational bands of the 33S16O2 molecule. The corresponding upper state ro-vibrational levels were fit using Watson-type Hamiltonians. In this way it was possible to reproduce the upper state ro-vibrational levels to within the experimental uncertainty; i.e., ~ 0.20 × 10$$-$$3 cm$$-$$1. Finally, very accurate rotational and centrifugal distortion constants were derived from the fit together with the following band centers: ν0 (ν2) = 515.659089(50) cm$$-$$1, ν0 (2ν2) = 1030.697723(20) cm$$-$$1.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1341741
- Alternate ID(s):
- OSTI ID: 1411836
- Report Number(s):
- PNNL-SA-120751; PII: S0022285216302211; TRN: US1701047
- Journal Information:
- Journal of Molecular Spectroscopy, Vol. 333, Issue C; ISSN 0022-2852
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Isotope shifts and band progressions in SO 2 rovibrational energy levels: using quantum theory to extract rotational constants
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journal | January 2019 |
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