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Motional broadening: an important distinction between multiple-quantum and satellite-transition MAS NMR of quadrupolar nuclei

Ashbrook, Sharon E; Antonijevic, S; Berry, Andrew; Wimperis, Stephen


Multiple-quantum (MQ) and satellite-transition (ST) magic-angle spinning (MAS) are two very similar techniques used to obtain high-resolution or 'isotropic' NMR spectra of half-integer quadrupolar nuclei. In a variety of materials it is observed that some STMAS peaks are very broad compared with the corresponding MQMAS peaks, sometimes so broad that they are unobservable. We present 17O (I = 5/2) NMR spectra of two materials, chondrodite (2Mg2SiO4. Mg(OH)2) and clinohumite (4Mg2SiO4.Mg(OH)2),...[Show more]

CollectionsANU Research Publications
Date published: 2002
Type: Journal article
Source: Chemical Physics Letters
DOI: 10.1016/S0009-2614(02)01412-4


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