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HIGH RESOLUTION FOURIER TRANSFORM SPECTROSCOPY OF THE $\nu_{3}, \nu_{4}$, AND $\nu_{6}$ BANDS OF $D_{2}CO$
Keiichi Nakagawa, R. H. Schwendeman, J. W. C. Johns
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Abstract
The Coriolis-coupled $\\nu_{3}$ (a-type, $1100 cm^{-1}), \\nu_{4}$ (c-type, $938 cm^{-1}), \\nu_{6}$ (b-type, $989 cm^{-1}$) fundamental vibrations of $D_{2}CO$ have been recorded with a BOMEM model DA3.002 Fourier transform spectrometer at a resolution of $0.004 cm^{-1}$ in the $780-1200 cm^{-1}$ spectral region. A total of $807 \\nu_{3}$ transitions, $796 \\nu_{4}$ transitions, and $1546 \\nu_{6}$ transitions have been assigned. The data from the present analysis have been combined with previous infrared laser Stark, sub-millimeter wave laser, infrared-microwave two-photon, and microwave data to derive a set of vibration-rotation constants for the bands.