Precise dipole moment and quadrupole coupling constants of benzonitrile

2007/09/30 by Kirstin Wohlfart, Melanie Schnell, Jens‐Uwe Grabow +2 · 1 citation
Chemistry · Physics and Astronomy · #Advanced Chemical Physics Studies #Molecular Spectroscopy and Structure #Spectroscopy and Laser Applications #physics.chem-ph

paper · pdf · doi:10.1016/j.jms.2007.10.006

published as J. Mol. Spec. 247(1), 119-121 (2008) · 6 pages, 2 tables (elsart)

openalex publication_date 2007/11/14 · arxiv created 2007/12/20 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

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 μ=μ_a=4.5152 (68) D.

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