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Submillimeter-Wave Rotational Spectra of SO Isotopomers in the Electronic Statesa1Δ andb1Σ+

✍ Scribed by Th. Klaus; S.P. Belov; G. Winnewisser

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
206 KB
Volume
186
Category
Article
ISSN
0022-2852

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✦ Synopsis

Pure rotational transitions of the sulfur monoxide isotopomers 32 S 16 O, 34 S 16 O, and 32 S 18 O were measured in different vibrational states of the electronic states a 1 D and b 1 S / with the Cologne terahertz spectrometer in the submillimeterwave region between 300 and 1070 GHz. The new lines were analyzed together with previous results from the literature in a global fit yielding isotopically invariant rotational parameters for both states. The measurements reported here allowed for the first time the determination of the parameters U S 01 and U O 01 to correct for the breakdown of the Born-Oppenheimer approximation analogously to the X 3 S 0 state. Precise equilibrium bond lengths r e are given for all states concerned.

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