Precise dipole moment and quadrupole coupling constants of benzonitrile

Abstract

We have performed Fourier transform microwave spectroscopy of benzonitrile, without and with applied electric fields. From the field-free hyperfine-resolved microwave transitions we simultaneously derive accurate values for the rotational constants, centrifugal distortion constants, and nitrogen nuclear quadrupole coupling constants of benzonitrile. By measuring the Stark shift of selected hyperfine transitions the electric dipole moment of benzonitrile is determined to $\mu ={\mu }_a=4.5152(68)$ D.

6 pages, 2 tables (elsart)

References in corpus (2)

• Alternating Gradient Focusing and Deceleration of Polar Molecules
• Precise dipole moments and quadrupole coupling constants of the cis and trans conformers of 3-aminophenol: Determination of the absolute conformation

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