ROTATIONAL SPECTROSCOPY AND MOLECULAR STRUCTURE OF $^{15}N_{2}-^{14}N_{2}O$
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Date
1998
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Ohio State University
Abstract
The rotational spectrum of $^{15}N_{2}-^{14}N_{2}O$ has been recorded in the 7-19 GHz region using a pulsed molecular beam. Fourier transform microwave spectrometer. Both a- and b-type transitions have been observed. The analysis of the hyperfine structure due to the two $^{14}N$ nuclei in the $N_{2}O$ subunit reveals that the energy levels are doubled, owing to a tunneling motion of the $^{15}N_{2}$ subunit. The rotational constants support a planar, T-shaped structure, with $^{15}N_{2}$ forming the leg of the T. This geometry is consistent with that obtained using infrared $spectroscopy.^{a}$ The nuclear quadrupole coupling constants of the two $^{14}N$ nuclei indicate that the b-axis of the complex forms an angle between $10-12^{\circ}$ with the $N_{2}O$ axis.
Description
$^{a}$ R.W. Randall, T.D. Dyke, and B.J. Howard, Faraday Discuss. Chem. Soc. 86, 21 (1988).
Author Institution: Department of Chemistry, Mount Holyoke College
Author Institution: Department of Chemistry, Mount Holyoke College