Radio-frequency-mediated dipolar recoupling among half-integer quadrupolar spins

被引：56
|
作者：
Baldus, M
Rovnyak, D
Griffin, RG
机构：
[1] MIT, Francis Bitter Natl Magnet Lab, Cambridge, MA 02139 USA
[2] MIT, Dept Chem, Cambridge, MA 02139 USA
来源：
JOURNAL OF CHEMICAL PHYSICS | 2000年 / 112卷 / 13期
关键词：
D O I：
10.1063/1.481187
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：
It is demonstrated that through-space recoupling can be achieved in dipolar coupled quadrupolar spins in the presence of an appropriate radio-frequency field. Experimental and theoretical results for Na-23-Na-23 pairs are presented that elucidate the experimental conditions leading to homonuclear dipolar transfer. The effect of adiabatic amplitude modulation on spin-3/2 systems is compared to spin-1/2 cases and applications of this approach in the context of high resolution multiquantum magic angle spinning for dipolar filtering and correlation are discussed. (C) 2000 American Institute of Physics. [S0021-9606(00)01810-9].
引用
收藏
页码：5902 / 5909
页数：8
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