MEASUREMENT OF NUCLEAR MAGNETIC DIPOLE-DIPOLE COUPLINGS IN MAGIC ANGLE SPINNING NMR

被引:282
作者
TYCKO, R
DABBAGH, G
机构
[1] AT and T Bell Laboratories, 600 Mountain Avenue, Murray Hill
关键词
D O I
10.1016/0009-2614(90)87235-J
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
We describe a method for measuring nuclear magnetic dipole-dipole couplings in NMR spectra of solids undergoing rapid magic angle spinning (MAS). We show in theory, simulations, and experiments that the couplings, which are averaged out by MAS alone, can be recovered by applying simple resonant radiofrequency pulse sequences in synchrony with the sample rotation. Experimental 13C dipolar powder pattern spectra of polycrystalline (13CH3)2C(OH)SO3Na obtained in a two-dimensional experiment based on this method are presented. The method provides a means of determining internuclear distances in polycrystalline and noncrystalline solids while retaining the high resolution and sensitivity afforded by MAS. © 1990.
引用
收藏
页码:461 / 465
页数:5
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