Abstract

2H NMR of static polycrystalline or amorphous solids often yields broad Pake powder patterns. These broad powder patterns arise from the orientation dependence of the second-rank quadrupolar Hamiltonian and the inherent orientational anisotropy of the sample. Here is presented an experiment that selectively excites a subset of the orientations of the quadrupolar Hamiltonian to give high-resolution spectra.

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