MILLIMETER/SUBMILLIMETER WAVE SPECTRUM OF METHYL FORMATE IN ITS GROUND TORSIONAL E STATE: APPLICATION OF THE HIGH-BARRIER P.A.M. TO HIGH K
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Date
1985
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Publisher
Ohio State University
Abstract
We report the measurement of over one hundred new rotational transitions of the internal rotor $HCOOCH_{3}$ in its E symmetry state. The principal axis method has been used to analyze these and all previously collected data. For relatively high barriers. Such as that in methyl formate, the A and E states can be treated as distinct asymmetric tops: only the latter showing explicit perturbations due to the internal rotation. The splitting of the E levels has been calculated using successive Van Vleck transformations and two-by-two diagonalizations, simplified by the evaluation of the perturbation matrix elements in the symmetric top basis.
Description
Author Institution: Department of Physics, Duke University; Department of Chemistry, California Institute of Technology; Department of Physics, Duke University; Department of Physics, Duke University