High-resolution study of the 2v5 hybrid band of the CHD3 molecule

O. N. Ulenikov, A. B. Malikova, S. Alanko, M. Koivusaari, R. Anttila

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44 Citations (Scopus)


The high-resolution infrared spectrum of CHD3 has been measured on a Fourier transform spectrometer and analyzed in the region of the 2v5 hybrid absorption band, 2450-2810 cm-1. Anomalously small A1-A2 splittings of energy levels (J, K = 1, A1,2) and anomalously large A1-A2 splittings of energy levels (J, K = 2, A1,2) in the E-type subband were observed. Energy levels were also observed for J ≥ 16 splittings of (J, K = 4, A1,2). These and other effects were described by strong Coriolis interactions between A1-and E-type vibrational subbands. A corresponding Hamiltonian model is derived. It reproduces the initial experimental data (Jmax = 22, Kmax a = 22) with mean accuracy 2.7 × 10-4 cm-1, which is not far from experimental uncertainties.

Original languageEnglish
Pages (from-to)175-194
Number of pages20
JournalJournal of Molecular Spectroscopy
Issue number2
Publication statusPublished - 1 Jan 1996

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry

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