Microwave spectrum, quadrupole coupling constants, and dipole moment of oxiranecarbonitrile

The rotational spectrum of oxiranecarbonitrile has been measured between 8 and 40 GHz with a Stark spectrometer and a waveguide Fourier transform microwave spectrometer. Three rotational constants, five centrifugal distortion constants, and the diagonal elements of the N-14 quadrupole coupling tensor were fitted to the observed transition frequencies. All three components of the electric dipole moment were determined from Stark effect measurements. (C) 1996 Academic Press, Inc.