HYPERFINE INTERACTIONS IN MAGNESIUM-BEARING FREE RADICALS
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Date
1997
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Ohio State University
Abstract
The technique of laser ablation has greatly eased the production of diamagentic and paramagnetic metal-containing molecules for spectroscopic study. High resolution measurements can be made of the hyperfine splitting in the pure rotational transitions of these types of molecules with a cavity Fourier transform microwave (FTMW) spectrometer. The precise constants derived from these measurements then provide a means of probing the electronic structure of the molecule or free radical under investigation. As reported previously, we have constructed a laser ablation setup for our parallel configuration FTMW $spectrometer^{g}$ Recently, we have used this system to measure the microwave spectra, between 4 and 26.5 GHz. of several magnesium containing molecules. For one of these compounds. MgNC, the $^{14}N$ hyperfine splitting has been observed. Constants for both magnetic hyperfine and nuclear quadrupole hyperfine interactions have been derived from the observed transitions. These constants will be used to discuss the: electronic structures of these molecules and comparisons will be made to other similar systems.
Description
$^{g}$K.A. Walter aid M. C. L. Gery, {J Mol. Spectrosc}., in press.
Author Institution: University of British Columbia
Author Institution: University of British Columbia