A tunable homonuclear dipolar decoupling scheme for high-resolution proton NMR of solids from slow to fast magic-angle spinning

被引：25
|
作者：
Gan, Zhehong [1 ]
Madhu, P. K. [2 ]
Amoureux, Jean-Paul [3 ]
Trebosc, Julien [3 ]
Lafon, Olivier [3 ]
机构：
[1] Ctr Interdisciplinary Magnet Resonance, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA
[2] Tata Inst Fundamental Res, Dept Chem Sci, Bombay 400005, Maharashtra, India
[3] Univ Lille 1, CNRS, UCCS 8181, F-59652 Villeneuve Dascq, France
来源：
CHEMICAL PHYSICS LETTERS | 2011年 / 503卷 / 1-3期
基金：
美国国家科学基金会;
关键词：
NUCLEAR-MAGNETIC-RESONANCE; STATE NMR; PULSE SEQUENCES; HIGH-FIELD; 65; KHZ; SPECTROSCOPY; FREQUENCIES; ROTATION; H-1-NMR;
D O I：
10.1016/j.cplett.2010.12.070
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：
A homonuclear dipolar decoupling scheme is introduced for obtaining proton high-resolution NMR spectra of solids under slow to fast magic-angle spinning (MAS). The basic unit is an extension of magic-echo sequence with its effective field tilted in the rotating frame, bracketed by two sandwich pulses. The angle of the tilt can be tuned for obtaining optimal spectral resolution according to the spinning frequency. Improved resolution has been obtained using this tunable sequence on a sample of glycine at 10 and 60 kHz of MAS compared with windowed phase-modulated Lee-Goldburg and magic-echo sandwich schemes. (C) 2011 Elsevier B. V. All rights reserved.
引用
收藏
页码：167 / 170
页数：4
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