2H double-quantum MAS NMR spectroscopy as a probe of dynamics on the microsecond timescale in solids

Cutajar, M., Ashbrook, S.E. and Wimperis, S. (2006) 2H double-quantum MAS NMR spectroscopy as a probe of dynamics on the microsecond timescale in solids. Chemical Physics Letters, 423(4-6), pp. 276-281. (doi: 10.1016/j.cplett.2006.03.065)

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Abstract

The sidebands observed in the magic angle spinning (MAS) NMR spectrum of a spin I = 1 2H nucleus may be very strongly broadened if motion is present in the solid. The broadening arises from interference between the line-narrowing effects of MAS and the dynamics-driven reorientation of the 2H quadrupole tensor. Here, we show that this motional broadening is absent or much reduced in the corresponding double-quantum MAS NMR spectrum. This observation suggests a new approach to studying dynamics in solids and examples are drawn from 2H MAS NMR of oxalic acid dihydrate, sodium tetrathionate dihydrate, and the synthetic polymer PMMA.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Wimperis, Professor Stephen
Authors: Cutajar, M., Ashbrook, S.E., and Wimperis, S.
Subjects:Q Science > QD Chemistry
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Chemical Physics Letters
ISSN:0009-2614

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