Abstract
The rotation-vibration spectrum of DCOOD has been recorded in the carbonyl stretch (ν3) region. Using a standard S-reduced Watson Hamiltonian in the Ir representation, 225 lines could be fitted to a vibrational–rotational band. A full set of molecular constants was obtained. The ν3 band is found to be strongly perturbed in the Ka: 1←1 and Ka: 2←2 subband. The perturbation is attributed to a Fermi resonance with the 2ν8 overtone band and Coriolis coupling to a combination band (ν4+ν7). The band center is determined to be 1725.1218(1) cm−1 which is more than 10 cm−1 shifted compared to previous studies.
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Schedule a callMore From: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
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