NORMAL COORDINATES FOR VINYL FLUORIDE AND THE SEVEN DEUTEROVINYL FLUORIDES

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Date

1966

Authors

El-Sabban, M. Z.
Zwolinski, B. J.

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Ohio State University

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Abstract

Annual coordinate calculation was carried out for these eight isotopic molecules based mainly on the experimental data reported by Bak and $Christensen.^{1}$ A perturbation program was used and the most general quadratic valence force potential function was assumed. A six-constant potential function did reproduce very closely the 24 out-of-plane vibrations. The results agree very well with those of Scherer and $Potts.^{2}$ A least-squares fit of the 72 calculated to the observed in-plane frequencies was obtained using a 45-constant potential function. On the basis of these calculations, the in-plane fundamental vibrational assignments of Bak and Christensen were reexamined and modified. The new assignments as well as the final set of potential functions will be presented and discussed.

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$^{1}$ B. Bak and D. Christensen, Spectrochim, Acta 12, 355 (1958). $^{2}$ J. R. Scherer and W. J. Potts, J. Chem Phys. 31, 1691 (1959).
Author Institution: Department of Chemistry, Thermodynamic Research Center Texas A\&M University

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