Amplitude-modulated low-power decoupling sequences for fast magic-angle spinning NMR

被引：38

作者：

Agarwal, Vipin ^{[1
]}

Tuherm, Tiit ^{[2
]}

Reinhold, Andres ^{[2
]}

Past, Jaan ^{[2
]}

Samoson, Ago ^{[2
]}

Ernst, Matthias ^{[1
]}

Meier, Beat H. ^{[1
]}

机构：

[1] ETH, CH-8093 Zurich, Switzerland

[2] Tallinn Univ Technol, NMR Inst, Tartu Teaduspk, Tehnomeedikum, EE-19086 Tallinn, Estonia

来源：

CHEMICAL PHYSICS LETTERS | 2013年 / 583卷

关键词：

SOLID-STATE NMR; NUCLEAR-MAGNETIC-RESONANCE; 2-PULSE PHASE MODULATION; LIQUID-CRYSTALS; HETERONUCLEAR; MAS; RESOLUTION; FREQUENCY; RELAXATION; SCHEMES;

D O I：

10.1016/j.cplett.2013.07.073

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 heteronuclear low-power decoupling sequence for fast magic-angle-spinning NMR. The sequence dubbed as AM-XiX is related to XiX decoupling. Optimum decoupling parameters can easily be predicted from experimental settings. AM-XiX decoupling gives narrower lines than the low-power XiX scheme. It has comparable performance to other fully optimized low-power decoupling sequences, an improved offset behavior, and is particularly simple to set up. The coherence life times at 90 kHz MAS and 12 kHz decoupling are comparable to those obtained with high-power decoupling at 400 kHz field strength and 10 kHz MAS frequency. (C) 2013 Elsevier B. V. All rights reserved.

引用

页码：1 / 7

页数：7

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