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High-Resolution Study of the 2ν5Hybrid Band of the CHD3Molecule

✍ Scribed by O.N. Ulenikov; A.B. Malikova; S. Alanko; M. Koivusaari; R. Anttila

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
684 KB
Volume
179
Category
Article
ISSN
0022-2852

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✦ Synopsis

The high-resolution infrared spectrum of CHD 3 has been measured on a Fourier transform spectrometer and analyzed in the region of the 2n 5 hybrid absorption band, 2450-2810 cm 01 . Anomalously small A 1 -A 2 splittings of energy levels (J, K Å 1, A 1,2 ) and anomalously large A 1 -A 2 splittings of energy levels (J, K Å 2, A 1,2 ) in the E-type subband were observed. Energy levels were also observed for J § 16 splittings of (J, K Å 4, A 1,2 ). These and other effects were described by strong Coriolis interactions between A 1 -and E-type vibrational subbands. A corresponding Hamiltonian model is derived. It reproduces the initial experimental data (J max Å 22, K max a Å 22) with mean accuracy 2.7 1 10 04 cm 01 , which is not far from experimental uncertainties. ᭧ 1996 Academic Press, Inc.

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[1] and 2n 5 (E) subbands, respectively. The Hamiltonian model, 175

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