Fourier transform millimeter-wave spectroscopy of the HCS radical in the {sup 2}A{sup {prime}} ground electronic state
- Department of Physics, The University of Tokyo, Bunkyo-ku, Tokyo113-0033 (Japan)
- Department of Chemistry, University of California, Berkeley, California94720 (United States)
- Institute of Atomic and Molecular Sciences, Academica Sinica, Taipei 106, Taiwan, Republic of (China)
The 1{sub 01}{endash}0{sub 00} rotational transition of the HCS radical in the {tilde X} {sup 2}A{sup {prime}} ground electronic state has been observed with a Fourier transform millimeter-wave spectrometer in combination with a pulsed discharge nozzle. The radical is produced by discharging a mixture of CH{sub 4} and H{sub 2}S diluted in Ar. Six fine and hyperfine components are detected, and the effective rotational constant, spin{endash}rotation interaction constant, and hyperfine interaction constants are determined accurately. The Fermi contact term of the hydrogen nucleus is found to be much smaller than that for the isovalent radical, HCO, indicating that the HCS radical is more close to a linear structure than the HCO radical. {copyright} {ital 1998 American Institute of Physics.}
- OSTI ID:
- 624863
- Journal Information:
- Journal of Chemical Physics, Vol. 108, Issue 21; Other Information: PBD: Jun 1998
- Country of Publication:
- United States
- Language:
- English
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