Measurement of the (14)N nuclear quadrupole resonance frequencies by the solid effect |
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Authors: | Seliger J Zagar V |
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Institution: | "Jozef Stefan" Institute, Jamova 39, 1000 Ljubljana, Slovenia. janez.seliger@fmf.uni-lj.si |
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Abstract: | (1)H-(14)N nuclear quadrupole double resonance using magnetic field cycling between high and low magnetic field and solid effect in the low magnetic field is analyzed in details. The transition probabilities per unit time for the solid-effect transitions are calculated. The double resonance spectra are calculated in the limiting cases of fast and slow nitrogen spin-lattice relaxation. The double resonance spectra are measured in histamine and quinolinic acid. The experimental spectra are analyzed and the (14)N NQR frequencies are determined. |
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Keywords: | N-14 Quadrupole resonance Double resonance Histamine Quinolinic acid |
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