2-DIMENSIONAL SIDE-BAND SEPARATION IN MAGIC-ANGLE-SPINNING NMR

被引：261

作者：

ANTZUTKIN, ON ^{[1
]}

SHEKAR, SC ^{[1
]}

LEVITT, MH ^{[1
]}

机构：

[1] UNIV STOCKHOLM,ARRHENIUS LAB,DIV PHYS CHEM,S-10691 STOCKHOLM,SWEDEN

来源：

JOURNAL OF MAGNETIC RESONANCE SERIES A | 1995年 / 115卷 / 01期

关键词：

D O I：

10.1006/jmra.1995.1142

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

A new method for separating isotropic and anisotropic chemical-shift interactions in magic-angle-spinning NMR is presented. The new method is based upon manipulation of the phases of spinning sidebands using sequences of five pi pulses. A two-dimensional pulse scheme separates the spinning sidebands by order. The amplitudes of the spinning sidebands may be analyzed to obtain the principal values of the chemical-shift anisotropy. For sites with many sidebands, it is possible to improve the signal-to-noise ratio considerably by skew projection of the two-dimensional spectrum. Experimental demonstrations are presented. (C) 1995 Academic Press, Inc.

引用

页码：7 / 19

页数：13

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