Determination of relaxation constants of a quadrupole spin system with many energy levels |
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| Authors: | I V Zolotarev A S Kim P G Neifel’d |
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| Institution: | (1) Perm State University, ul. Bukireva 15, Perm, 614600, Russia;(2) Perm Department of Russian Research Center “Applied Chemistry,”, Perm, Russia |
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| Abstract: | The two-frequency nuclear quadrupole resonance method is used to determine the relaxation time for all single-quantum transitions in a quadrupole spin system with many energy levels from the results obtained for a single transition, which is impossible in a one-frequency method. The accuracy is the same as in the measurement of relaxation time in the case of one-frequency pumping of the transition chosen as the “basis.” The results of measurements are presented and determination of relaxation constants for KReO4 and NaReO4 as well as SbCl3 and SbBr3 and their complexes at various temperatures with the help of the two-frequency NQR method. |
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