Abstract
The high-resolution Fourier transform spectrum of the D2O molecule were recorded and analyzed in the region near 0.97 μm (10 200-10 440 cm-1) where the bands of the ν = 4 (ν = ν1 + ν2/2 + ν3) polyad are located. Transitions belonging to the strongest band of the polyad, 3ν1 + ν3, are assigned up to the value of the rotational angular momentum quantum number J = 13. The presence of strong local resonance interactions allowed us to assign some transitions to the very weak band 4ν1. Upper states energies obtained on that basis were fitted with a Hamiltonian model which took into account resonance interactions between the states of the ν = 4 polyad. The derived spectroscopic parameters reproduce the overwhelming majority of assigned transitions within experimental accuracy.
Original language | English (US) |
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Pages (from-to) | 18-27 |
Number of pages | 10 |
Journal | Journal of Molecular Spectroscopy |
Volume | 210 |
Issue number | 1 |
DOIs | |
State | Published - 2001 |
Keywords
- DO molecule
- Spectroscopic parameters
- Vibration-rotation spectra