SIMULTANEOUS ANALYSIS OF THE $\nu_{2}, \nu_{3}, \nu_{5}$ AND $\nu_{6}$ BANDS OF $CD_{3}F$
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Date
1984
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Ohio State University
Abstract
The infrared spectrum of $CD_{3}F$ from 800 to $1220 cm^{-1}$ measured with resolution of about $0.0045 cm^{-1}$ has been analyzed using a model which treats the four fundamentals $\nu_{2}(A_{1}), \nu_{3}(A_{1}), \nu_{5}(E)$ and $\nu_{6}(E)$ simultaneously. 62 parameters were refined freely in a least squares fit of microwave data and over 4200 upper state energy levels with $J \leq 40$ obtained from the infrared spectrum. The root mean square deviations of the infrared and microwave data were $0.706 \times 10^{-3} cm^{-1}$ and $0.809 \times 10^{-5} cm^{-1}$ respectively. Practically all strong and medium strong, and even the great majority of the weak transitions have been assigned in the infrared spectrum. Due to strong Coriolis, $\alpha, r$ and higher order resonances, many normally ``forbidden'' infrared transitions have been observed which allows to determine the ground state constants $A_{0}$ and $D_{K0}$ with high accuracy. The energy levels in many of the observed submillimeter wave laser lines of $CD_{3}F$ can now be identified.
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Author Institution: Department of Chemistry, Helsinki University of Technology