期刊
CHEMICAL PHYSICS LETTERS
卷 452, 期 4-6, 页码 233-238出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cplett.2007.12.071
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资金
- EPSRC [GR/T23824/01] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [GR/S96579/02, GR/S96579/01, GR/T23824/01] Funding Source: researchfish
In solid-state NMR, the magic angle spinning (MAS) technique fails to suppress anisotropic spin interactions fully if reorientational dynamics are present, resulting in a decay of the rotational-echo train in the time-domain signal. We show that a simple analytical model can be used to quantify this linebroadening effect as a function of the MAS frequency, reorientational rate constant, and magnitude of the inhomogeneous anisotropic broadening. We compare this model with other theoretical approaches and with exact computer simulations, and show how it may be used to estimate rate constants from experimental NMR data. (c) 2008 Elsevier B.V. All rights reserved.
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