A simple technique for determining nuclear quadrupole coupling constants with RAPT solid-state NMR spectroscopy

被引：69

作者：

Prasad, S ^{[1
]}

Kwak, HT ^{[1
]}

Clark, T ^{[1
]}

Grandinetti, PJ ^{[1
]}

机构：

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

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2002年 / 124卷 / 18期

关键词：

D O I：

10.1021/ja025910q

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An enhanced Rotor Assisted Population Transfer (RAPT) experiment is presented and used as a simple and fast technique to measure the magnitude of the nuclear quadrupolar coupling constant of half-integer quadrupolar nuclei. The enhanced RAPT sequence consists of a train of Gaussian pulses with alternating off-resonant frequencies of ±voff. Simulated and experimental results demonstrating the method are given in the case of 87Rb (spin 3/2) and 27Al (spin 5/2) nuclei. The RAPT sequence is also used to selectively suppress resonances based on their quadrupolar coupling constant. Copyright © 2002 American Chemical Society.

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页码：4964 / 4965

页数：2

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