Measuring heteronuclear dipolar couplings for I=1/2, S>1/2 spin pairs by REDOR and REAPDOR NMR

被引：99

作者：

Gullion, T ^{[1
]}

Vega, AJ

机构：

[1] W Virginia Univ, Dept Chem, Morgantown, WV 26505 USA

[2] Univ Delaware, Dept Chem & Biochem, Newark, DE 19716 USA

来源：

PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY | 2005年 / 47卷 / 3-4期

基金：

美国国家科学基金会;

关键词：

REDOR; REAPDOR; dipolar recoupling; MAS NMR;

D O I：

10.1016/j.pnmrs.2005.08.004

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：

The REDOR and REAPDOR experiments, which are viable methods for measuring internuclear distances for quadrupolar S spins provided the quadrupolar frequency is fairly small, were discussed. Nuclei such as 6Li, 7Li, 133Cs, and 2H were selected for REDOR experiments. The conditions for which the dipolar evolution of each of these two experiments is described by universal dipolar dephasing curves were also presented. The universal dipolar dephasing curves depend only on the dipolar coupling and are independent of the quadrupolar interaction and relative orientation between dipolar and quadrupolar tensors. Both REDOR and REAPDOR provide the opportunity to measure dipolar couplings accurately.

引用

页码：123 / 136

页数：14

共 59 条

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