Millimetre wave spectrum of methyl mercaptan

Details Millimetre wave spectrum of methyl mercaptan Millimetre wave spectrum of methyl mercaptan

Nov 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980cajph..58.1640l&link_type=abstract

Canadian Journal of Physics, vol. 58, Nov. 1980, p. 1640-1648. Research supported by the Natural Sciences and Engineering Resear

Astronomy and Astrophysics

Astronomy

5

Interstellar Matter, Methyl Compounds, Microwave Spectra, Radio Astronomy, Thiols, Astronomical Catalogs, Electron Transitions, Millimeter Waves, Molecular Rotation, Rotational Spectra

Scientific paper

The rotational spectrum of CH3S(32)H, a molecule detected in the interstellar medium, is examined over the 25-107 GHz region. The frequencies of a-type delta k = 0 R-branch transitions are measured for the J = 1 - 0 up to J = 4 - 3 multiplets for torsional states vt = 0-3. In addition, several P-, Q-, and R-branch transitions with delta k not equal to 0 are identified in order to provide a catalog of lines for potential radio astronomical applications. Improved values of rotational and centrifugal distortion constants, a-type torsion-vibration-rotation interaction constants, and torsional barrier parameters are determined from least-squares analyses of the spectra.

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