FIRST ANALYSIS OF THE $3\nu_{g}- \nu_{g}, 3\nu_{g}- \nu_{5}$ AND $3\nu_{9} -2\nu_{5}$ BANDS OF $HNO_{3}$: TORSIONAL SPLITTING IN THE $\nu_{9}$ VIBRATIONAL MODE.
Loading...
Date
1994
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
Using Fourier transform spectra recorded at Giessen University and at Denver University in the 25$m\mu m$ and 12$\mu m$ spectral regions respectively, it has been possible to perform the first analysis of the $3 \nu_{5} \nu_{5}$ and $3 \nu_{9} - \nu_{9}$ hot bands of $HNO_{3}$ located at $392.4 cm^{-1}$, $409.8 cm^{-1}$ and $830.4 cm^{-1}$ respectively. An accurate description of the torsional splitting in the $\nu_{9}=3$ vibrational state was achieved, leading to the determination of the two torsional band centers $E_{\nu_{9}=3.1}-1288.8451 cm^{-1}$ and $E_{\nu_{9}-3,2}=1288.9036 cm^{-1}$ and to the first determination of the $\nu_{9}$ torsional potential of $HNO_{3}$.
Description
Author Institution: Laboratoire de Physique Mol\'{e}culaire et Applications, CNRS, Universit\'e Pierre et Marie Curie; Physikalish-Chemisches Institut, Justus-Liebig-Universitat; Department of Physics, University of Denver; Atmospheric Sciences Division, NASA Langley Research Center