DEUTERIUM NUCLEAR HYPERFINE SPLITTINGS OF ROTATIONAL TRANSITIONS
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Date
1987
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Ohio State University
Abstract
Deuterium quadrupole splittings of rotational transitions have been observed for benzene-$d_{1}$. for ortho-, meta-, and para-fluorobenzene-$d_{1}$, and for deuterated isothiocyanic acid (DNCS). A gaseous mixture diluted by argon has been expanded through a pulsed supersonic nozzle into an evacuated high Q Fabry-Perot microwave resonator. Highly resolved rotational spectra have been detected with the pulsed excitation and Fourier transform technique. Due to the extremely small dipole moment of benzene-$d_{1}$ the molecules have been excited with microwave pulses of up to 10 W. Deuterium quadrupole coupling constants of benzene-$d_{1}$ and the three fluorobenzene-$d_{1}$ showed little variation.
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Author Institution: Laboratorium f\""{u}r Physikalische Chemie., Eidgen\""{o}ssische