A few weeks ago I posted a question to the AMMRL group on the subject
of a good Chlorine NQR sample for checking spectrometer sensitivity.
The only response received was from Doug Meinhart, as follows:
> I have used NaClO3 (NQR = 29.935 MHz) and KClO3 (NQR = 28.050 MHz)
> The NaCl03 will split in a magnetic field, see Abragam, so
> it is not good unless you can do it at zero field. However
> the linewidth is good ~4 KHz, or so. And it is easy to grow
> big single crystals of NaClO3 and see the orietation dependence
> in a small applied external field, also see Abragam.
> Hope this helps you out.
>
We obtained some NaClO3 in polycrystalline form and were able to get
a Chlorine signal from our spectrometer, demonstrating that it was
working. Now our 7T magnet is installed and we are getting NMR
signals.
Thanks Doug! Your response was very helpful. Hope to see you at the
ENC.
Russ Bowers
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C. Russell Bowers
Assistant Professor of Chemistry
University of Florida
Gainesville, Florida 32611
and National High Magnetic Field
Laboratory, Tallahassee
phone: (904) 846-0839
fax: (904) 392-8758
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