Enhanced sensitivity in RIACT/MQ-MAS NMR experiments using rotor assisted population transfer

被引：50

作者：

Kwak, HT

Prasad, S

Yao, Z

Grandinetti, PJ

Sachleben, JR

Emsley, L

机构：

[1] Ohio State Univ, Dept Chem, Columbus, OH 43210 USA

[2] Ohio State Univ, Campus Chem Instrumentat Ctr, Columbus, OH 43210 USA

[3] Ecole Normale Super Lyon, Lab Stereochim & Interact Mol, CNRS, UMR 5532, F-69364 Lyon, France

来源：

JOURNAL OF MAGNETIC RESONANCE | 2001年 / 150卷 / 01期

基金：

美国国家科学基金会;

关键词：

MQ-MAS; RIACT; RAPT; quadrupolar nuclei; solid-state NMR;

D O I：

10.1006/jmre.2001.2313

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

The rotor assisted population transfer (RAPT) sequence is used to enhance the sensitivity of the RIACT(II) experiment for spin-3/2 quadrupolar nuclei. A detailed theoretical analysis of the polarizations that contribute to different types of MQ-MAS experiments is provided. In particular, two polarization pathways are distinguished for the creation of triple-quantum coherence. The existence of these pathways is experimentally demonstrated by comparing the sensitivities of different sequences with and without RAPT preparation. (C) 2001 Academic Press.

引用

收藏

页码：71 / 80

页数：10

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