The performance of phase modulated heteronuclear dipolar decoupling schemes in fast magic-angle-spinning nuclear magnetic resonance experiments

被引:62
作者
De Paëpe, G [1 ]
Lesage, A [1 ]
Emsley, L [1 ]
机构
[1] Ecole Normale Super Lyon, Chim Lab, UMR CNRS 5532, ENS,Lab Rech Convent,CEA 23V, F-69364 Lyon, France
关键词
D O I
10.1063/1.1595088
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 experimental performance of the phase modulated decoupling schemes SDROOPY-1 and SPINAL64 is investigated for heteronuclear dipolar decoupling in solid-state magic-angle-spinning nuclear magnetic resonance (NMR), in comparison with existing decoupling methods. It is found that both sequences perform well over a range of spinning rates from 0 to 35 kHz, with linewidths that are virtually independent of the spinning rate. The signal intensity is found to diminish with increasing spinning rate, and this behavior is compared qualitatively with theory. It is also demonstrated that decoupling sequences strongly influence the refocused linewidths observed in solid-state NMR, and that SDROOPY-1 and SPINAL64 both yield particularly long dephasing times. (C) 2003 American Institute of Physics.
引用
收藏
页码:4833 / 4841
页数:9
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