✦ LIBER ✦

On the Rotational Analysis of the Ground Vibrational State of CH3D Molecule

✍ Scribed by O.N. Ulenikov; G.A. Onopenko; N.E. Tyabaeva; J. Schroderus; S. Alanko

Publisher: Elsevier Science
Year: 1999
Tongue: English
Weight: 289 KB
Volume: 193
Category: Article
ISSN: 0022-2852
DOI: 10.1006/jmsp.1998.7729

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✦ Synopsis

The rotational analysis in the ground vibrational state has been carried out for CH 3 D by using the ground state combination differences. More than 1500 allowed and 2500 forbidden transitions from the fundamental bands 3 , 5 , and 6 were used to determine 12 rotational parameters, which reproduce the observed combination differences within an accuracy of 1.0 ϫ 10 Ϫ4 cm Ϫ1 . Altogether ten independent a 1 -a 2 (K ϭ 3) splittings with J Ն 10 in the vibrational ground state were observed and analyzed both with supercombination differences method [O. N. Ulenikov, S. Alanko, M. Koivusaari, and R. Anttila, Chem. Phys. Lett. 268, 242-248 (1997)] and by generating energy levels from Hamiltonian. Problems in simultaneous determination of ⑀ ˜and h ˜3 constants responsible for such splittings are discussed.

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