A "Magic Sandwich" pulse sequence with reduced offset dependence for high-resolution separated local field spectroscopy

被引：87

作者：

Nevzorov, AA ^{[1
]}

Opella, SJ ^{[1
]}

机构：

[1] Univ Calif San Diego, Dept Chem & Biochem, La Jolla, CA 92093 USA

来源：

JOURNAL OF MAGNETIC RESONANCE | 2003年 / 164卷 / 01期

关键词：

dipolar coupling; sample alignment; PISEMA; solid state NMR;

D O I：

10.1016/S1090-7807(03)00240-4

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A pulse sequence for high resolution separated local field spectroscopy based on "magic sandwich" elements is demonstrated on a single crystal sample. Simulations and experimental results show that this pulse sequence has a reduced frequency offset dependence compared to PISEMA (polarization inversion spin exchange at the magic angle). As a result, it has a larger effective range of homonuclear decoupling, reduced zero-frequency spectral distortions, and more reliable scale factors for individual resonances. In addition, it is easier to setup on commercial spectrometers. (C) 2003 Elsevier Science (USA). All rights reserved.

引用

页码：182 / 186

页数：5

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