Fourier-transform MW spectroscopy of the SH({sup 2}{Pi}{sub i})-Ar and SD-Ar radical complexes
- Univ. of Tokyo (Japan)
- Kyoto Univ. (Japan)
The authors have studied the SH({sup 2}{Pi}{sub i})-Ar and SD-Ar radical complexes with FTMW spectroscopy. The complexes were produced in a supersonic free jet by a pulsed discharge of H{sub 2}S or D{sub 2}S, which was diluted to 0.35% in Ar with a stagnation pressure of 2 atm. R-branch transitions in the lower spin-orbit component ({Omega}=3/2) for the linear {sup 2}{Pi}{sub i} radicals were observed for J{double_prime} = 3/2 to J{double_prime} = 15/2 in the 8-26 GHz region. The transitions were split into two parity components owing to the parity doubling. Each parity component was split further due to the magnetic hyperfine interaction associated with the H/D nucleus. Rotational constants for SH-Ar and SD-Ar were determined to be 1569.656(2) and 1567.707(2)MHz respectively. The value for SH-Ar agrees well with that of a previous LIF study. From the SH/SD data, it was confirmed that the argon atom is located at the hydrogen side of the SH radical. With an assumption that the S-H bond length is equal to that in the monomer, the H-Ar distance is calculated to be 2.900 {Angstrom}, which is about 0.1 {Angstrom} longer than that in OH-Ar. The effective D{sub J} constants of SH-Ar and SD-Ar were found to have negative values of -58.4(7) and -50.7(6), kHz respectively.
- OSTI ID:
- 437251
- Report Number(s):
- CONF-9606118-; TRN: 96:005696-0047
- Resource Relation:
- Conference: 51. Ohio State University international symposium on molecular spectroscopy, Columbus, OH (United States), 10-14 Jun 1996; Other Information: PBD: 1996; Related Information: Is Part Of Ohio State University 51st international symposium on molecular spectroscopy; PB: 272 p.
- Country of Publication:
- United States
- Language:
- English
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