Blake, T.
, Flaud, J.
and Lafferty, W.
(2017),
First analysis of the rotationally-resolved ν2 and 2ν2- ν2 bands of sulfur dioxide, 33S16O2, Journal of Molecular Spectroscopy, [online], https://doi.org/10.1016/j.jms.2016.12.011
(Accessed April 19, 2024)
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First analysis of the rotationally-resolved ν2 and 2ν2- ν2 bands of sulfur dioxide, 33S16O2
Published
Author(s)
Thomas A. Blake, Jean-Marie Flaud,
Abstract
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 x 10-3 cm-1. 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.Citation
Journal of Molecular Spectroscopy
Volume
333
Pub Type
Journals
Download Paper
Keywords
band centers, greenhouse gas, infrared spectrum, rotational analysis, sulfur dioxide, Watson Hamiltonian
Citation
Created January 2, 2017, Updated October 12, 2021