INTERNAL BARRIER OF ACETYL CYANIDE FROM THE MICROWAVE $SPECTRUM^{*}$
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Date
1957
Authors
Krisher, Lawrence C.
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
“The microwave spectra of acetyl cyanide, $CH_{3}COCN$, and the completely deuterated species, $CD_{3}COCN$, have been studied in the region of 10,000 to 34,000 megacycles. Transitions up to $J= 12$ have been assigned and the moments of inertia of the two isotopic species have been determined, allowing a partial determination of the structure to be made. Splittings due to hindered internal rotation of the methyl group have been observed for lines of the ground torsional state. These splittings are found to be in good agreement with the theory of Wilson and co-workers for a barrier to internal rotation, ${V}(\alpha)={V}_{3}(1-cos 3\alpha)/2$ of ${V}_{3}=1250$ cal/mole ($437 cm^{-1}$).”
Description
$^{*}$This research was made possible in part by support extended Harvard University by the Office of Naval Research under ONR Contract Nour 1866 (14), and by a grant from the California Research Corporation. $^{\dagger}$National Science Foundation Predoctoral Fellow, 1956-57.
Author Institution: Department of Chemistry, Harvard University
Author Institution: Department of Chemistry, Harvard University