THE FAR ULTRAVIOLET ABSORPTION SPECTRA OF ETHYLENE AND DEUTERO-ETHYLENE
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Date
1954
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Ohio State University
Abstract
The absorption spectra of $C_{2}H_{4}$ and $C_{2}D_{4}$ were investigated under high resolution from 1500A to 2000A. It proved to be possible to determine vibrational constants and approximate anharmonicity constants for the R and V states as well as torsional frequencies. The hindering potential barrier in the R state was estimated to be $700-1200 cm^{-1}$ and in the V state to be less than $21,700 cm^{-1}$. Treatment of the strong N-V continuum as the dissociation of a free rotator-vibrator gave a dissociation energy of $7.4\pm .3$ electron volts for the V state.
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Author Institution: Department of Physics, University of Chicago