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Fourier transform absorption spectrum of in 7360–8440 cm−1 spectral region

✍ Scribed by A.D. Bykov; O.V. Naumenko; E.R. Polovtseva; S.-M. Hu; A.-W. Liu

Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
747 KB
Volume
111
Category
Article
ISSN
0022-4073

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✦ Synopsis

The high-resolution Fourier-transform spectrum of the D 2 16 O molecule is recorded and analyzed in the region near 1:27 mm (7360-8440 cm À 1 ) where the bands of the V =3 (V=v 1 + v 2 /2 +v 3 ) polyad are located. A total of 2772 transitions have been assigned based on recent variational calculation of Shirin et al. [JQSRT 2008;109:549-58]. A set of 1094 energy levels (564 of which are new) is determined for nine vibrational states including those of newly reported (1 0 2) and (2 2 0) states. Calculations using an effective Hamiltonian are performed to establish reasonable ro-vibrational labeling of the observed energy levels. The latest variational calculation are found to agree well with the experiment for line positions (within 0.026 cm À 1 on average); however, the calculated intensities for transitions to upper energy levels which are in close resonance with other states can be distorted.

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