Triple-quantum MAS-NMR of quadrupolar nuclei

被引:129
作者
Fernandez, C
Amoureux, JP
机构
[1] Lab. de Dynamique et Structure, Des Mat. Moléculaires, CNRS URA801, F-59655 Villeneuve d'Ascq, Cedex
关键词
multiquantum NMR; quadrupolar nuclei; excitation schemes; pure-absorption mode 2D; Rb-87; NMR;
D O I
10.1016/0926-2040(95)01197-8
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
From two-dimensional multiquantum NMR spectra of quadrupolar nuclei, it is now possible to obtain much greater resolution than in a classical single-quantum magic-angle spinning or variable-angle spinning spectrum. We describe here a very simple pulse scheme which efficiently excites the desired multiquantum NMR coherence and a new acquisition procedure which yields to pure-absorption mode 2D spectra. Experimental spectra for Rb-87 in polycrystalline rubidium nitrate illustrate the method.
引用
收藏
页码:315 / 321
页数:7
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