DETERMINATION OF NUCLEAR QUADRUPOLE COUPLING CONSTANTS FROM NUCLEAR MAGNETIC RESONANCES IN POLYCRYSTALLINE SOLIDS
Journal Article
·
· Journal of Chemical Physics (U.S.)
The line shape of a nuclear magnetic resonance in a polycrystalline solid under the influence of an axially symmetric second-order nuclear quadrupole perturbation was calculated for 20 values of the quadrupole coupling constant. From these calculations the frequency difference between the peaks in the derivative of the resonance line was found as a function of the quadrupole coupling constant. This relation is shown to be useful in two cases. First, a procedure is described for determining the quadrupole coupling constant by studying the resonance as a function of magnetic field, when it is known that the electric-field-gradient asymmetry parameter is zero. Second, when both firstand second-order quadrupole effe ts can be observed in a polycrystalline solid, a method is described for determining both the quardupole coupling constant and the electric field gradient asymmetry parameter for small values of the asymmetry parameter. (auth)
- Research Organization:
- Rensselaer Polytechnic Inst., Troy, N.Y.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-18-008351
- OSTI ID:
- 4102869
- Journal Information:
- Journal of Chemical Physics (U.S.), Journal Name: Journal of Chemical Physics (U.S.) Vol. Vol: 40; ISSN JCPSA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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