Accession Number:

AD0619912

Title:

THE MICROWAVE SPECTRUM OF METHYL VINYL ETHER,

Descriptive Note:

Corporate Author:

COLUMBIA RADIATION LAB NEW YORK

Personal Author(s):

Report Date:

1964-01-01

Pagination or Media Count:

12.0

Abstract:

Many of the lines in the microwave spectrum of methyl vinyl ether were assigned to a planar cis molecular conformation, having the following principal moments of inertia, Ia 27.7382, Ib 79.1268, and Ic 103.678 gm sq. cm2. The dipole moment of the cis structure was measured and found to be 0.98 0.02 D mu-a 0.30 D and mu-b 0.93 D. Vibrationally excited states of this species were assigned using a microwave double-resonance technique. This method consists of observing the change in one transition while a second transition is saturated with microwave power. Changes occur only if the two transitions have a common energy level. Various evidence indicates an unusually large value for the barrier to internal rotation of the CH3 group. Author

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE