The near infrared high-resolution spectra of the a-type transitions of the weak 3v(1)+2v(2) combination band of transient HO35(37)Cl at 12600 cm(-1) has been recorded in an ultrasensitive titanium:sapphire intracavity laser absorption spectrometer (ICLAS). We report line assignments, new and refined anharmonicity parameters, and the spectroscopic constants for the excited rovibrational states of 3v(1)+2v(2). The Fermi resonance perturbations in this five quanta region, where the internal energy of the molecule is already more than 2/3 of the dissociation energy E(0), remain localized and they are the exception, while the extent of intermode mixing and thus intramolecular vibrational energy distribution (IVR) seems to be still small. A Dunham expansion is used for band origin predictions and representations of vibrational states N(E) of (HOCl)-Cl-35 up to the dissociation threshold. The results are compared with harmonic and anharmonic numbers of states from a recently proposed stretch-bend coupling model. (C) 1996 American Institute of Physics.
机构:Laboratoire de Spectrométrie Physique (URA 08)1 1 Associated with the CNRS., Université Joseph Fourier de Grenoble, 38402 Saint-Martin-d'Heres Cedex
CAMPARGUE, A
;
CHARVAT, A
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机构:Laboratoire de Spectrométrie Physique (URA 08)1 1 Associated with the CNRS., Université Joseph Fourier de Grenoble, 38402 Saint-Martin-d'Heres Cedex
CHARVAT, A
;
PERMOGOROV, D
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机构:Laboratoire de Spectrométrie Physique (URA 08)1 1 Associated with the CNRS., Université Joseph Fourier de Grenoble, 38402 Saint-Martin-d'Heres Cedex
机构:Laboratoire de Spectrométrie Physique (URA 08)1 1 Associated with the CNRS., Université Joseph Fourier de Grenoble, 38402 Saint-Martin-d'Heres Cedex
CAMPARGUE, A
;
CHARVAT, A
论文数: 0引用数: 0
h-index: 0
机构:Laboratoire de Spectrométrie Physique (URA 08)1 1 Associated with the CNRS., Université Joseph Fourier de Grenoble, 38402 Saint-Martin-d'Heres Cedex
CHARVAT, A
;
PERMOGOROV, D
论文数: 0引用数: 0
h-index: 0
机构:Laboratoire de Spectrométrie Physique (URA 08)1 1 Associated with the CNRS., Université Joseph Fourier de Grenoble, 38402 Saint-Martin-d'Heres Cedex