Effects of spin diffusion on spin-lattice relaxation in solid-state 2H MAS NMR spectroscopy

被引：12

作者：

Cutajar, Marica ^{[1
,2
]}

Lewis, Moira H. ^{[1
,2
]}

Wimperis, Stephen ^{[1
,2
]}

机构：

[1] Univ Glasgow, Dept Chem, Glasgow G12 8QQ, Lanark, Scotland

[2] Univ Glasgow, WestCHEM, Glasgow G12 8QQ, Lanark, Scotland

来源：

CHEMICAL PHYSICS LETTERS | 2007年 / 449卷 / 1-3期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1016/j.cplett.2007.10.021

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Recently, there has been increased interest in using H-2 MAS NMR spectroscopy as an alternative to 'static' quadrupolar-echo NMR for studying dynamics in solids. Here we show that the phenomenon of enhanced spin diffusion as a result of n = 0 rotational resonance can lead to observation of a common spin-lattice (T-1) relaxation time for all deuterons. Thus, if rapidly relaxing groups are present, such as -CD3 or -ND3+ groups, then even highly immobile deuterons can exhibit T, relaxation times of similar to 1 s under MAS conditions, greatly facilitating data acquisition. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：86 / 91

页数：6

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