| Résumé | Quadrupolar NMR plays a vital role in the study of molecular and ionic dynamics in solids, often providing extensive information that cannot be obtained by other techniques and that is important for understanding the physical properties of materials. 2H has been the pre-eminent quadrupolar nucleus for studying dynamics in a wide range of organic and inorganic materials, but other nuclei have their specific niches, such as 6,7Li in ion conducting materials. Currently, with much interest focused on nuclei with larger quadrupole moments, such as spin I = 1 14N and 11B, 17O, 27Al, and other noninteger nuclei, there is an increasing awareness of the effects of dynamics on the NMR spectra and relaxation times of such nuclei and on the various techniques used to obtain high resolution and multiple quantum spectra. In this article, we present an overview of the current state of this area of research, providing qualitative descriptions of the underlying mechanisms by which the NMR spectra of various quadrupolar nuclei can be affected by dynamics over an extremely wide range of timescales and discussing the basic principles behind various experimental methods. |
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