Fourier Transform Far-Infrared Spectroscopy of the SH Radical

✍ Scribed by I. Morino; K. Kawaguchi

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 276 KB
• Volume: 170
• Category: Article
• ISSN: 0022-2852
• DOI: 10.1006/jmsp.1995.1064

✦ Synopsis

The pure rotational absorption spectrum of the (\mathrm{SH}) radical in the ground ({ }^{2}) II state was observed by a high-resolution Fourier transform spectrometer. The radical was generated by a dc discharge in an (\mathrm{H}{2} \mathrm{~S}, \mathrm{H}{2}), and (\mathrm{He}) mixture. Rotational transitions in the ({ }^{2} \Pi_{1 / 2}) components were directly observed for the first time. The observed 31 absorption lines, together with 1 -type doubling transitions measured by Meerts and Dymanus (Astrophys. J. 187, L45, 1974; Can. J. Phys. 53, 2123,1975 ), were analyzed by a least-squares method, to determine the rotational, centrifugal, spin-rotation coupling, and (\Lambda)-type doubling constants in the ground state. (o) 1995 Academic Press, Inc.