Journal
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
Volume 176, Issue 2, Pages 543-550Publisher
IOP PUBLISHING LTD
DOI: 10.1086/528684
Keywords
catalogs; methods : laboratory; molecular data; submillimeter; techniques : spectroscopic
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Pure rotational transitions have been measured for the normal isotopologue of thioformaldehyde, (H2CS)-C-12-S-32, in the ground vibrational state in the 110-370 GHz, 570-670 GHz, and 850-930 GHz frequency ranges. A global data set has been constructed consisting of prior microwave and millimeter-wave transitions, the submillimeter-wave and terahertz (THz) transitions reported here, and far-infrared data and ground state combination differences. The 783 different transition frequencies in the data set were fit to Watson's S-reduced Hamiltonian with 20 parameters, resulting in a dimensionless weighted root-mean-square deviation of 0.78. New frequency predictions have been made for astronomical observations based on the molecular parameters obtained in the present study.
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