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Xenon Tetrafluoride: Fluorine-19 High-Resolution Magnetic Resonance Spectrum.
The F(19) spectrum of XeF(4) dissolved in anhydrous hydrogen fluoride has been observed at two frequencies, yielding a F(19) chemical shift of 175 parts per million to lower field than the solvent and a Xe(129)-F(19) spin-spin coupling constant, confirmed by double irradiation, of 3860 cycles per second. Absence of fast F(19) chemical exchange and collapse of the Xe(131)-F(19) coupling by quadrupole relaxation may be inferred from the spectrum.
PMID: 17819836 [PubMed - as supplied by publisher]
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Patient Drug Information
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Fluoride (ACT® , APF Gel® , Control Rx® , ...)
Fluoride is used to prevent tooth decay. It is taken up by teeth and helps to strengthen teeth, resist acid, and block the cavity-forming action of bacteria. Fluoride usually is prescribed for children and adults whose h...