Double-resonance decoupling for resolution enhancement of 31P solid-state MAS and 27Al --> 31P MQHETCOR NMR.
Double-resonance decoupling for resolution enhancement of 31P solid-state MAS and 27Al --> 31P MQHETCOR NMR.
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用于增强 31P 固态 MAS 和 27Al 分辨率的双共振解耦 --> 31P MQHETCOR NMR。
DOI：
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发表时间：
2003
影响因子：
3.2
通讯作者：
J. Rocha
中科院分区：
文献类型：
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作者：
L. Delevoye;C. Fernandez;C. Morais;J. Amoureux;V. Montouillout;J. Rocha
27 Al去偶已被用于去除微孔磷酸铝AlPO 4 -14和AlPO 4 -40中31 P和27 Al之间的残留J-偶联相互作用。结合1H高功率去耦，27 Al适应去耦产生具有最佳灵敏度和分辨率的31 P光谱。双共振去耦的重要性进一步证明了将这种技术在MQHETCOR序列。通过结合27 Al维度的多量子演化和31 P采集域的双共振解耦，实现了所有AlPO 4 -14核磁共振的无敌意分配。
27Al decoupling has been used to remove residual J-coupling interactions between 31P and 27Al in microporous aluminophosphates AlPO4-14 and AlPO4-40. In combination with 1H high-power decoupling, 27Al adapted decoupling yields 31P spectra with optimal sensitivity and resolution. The importance of double-resonance decoupling is further demonstrated by incorporating this technique in the MQHETCOR sequence. Unambiguous assignment of all the AlPO4-14 nuclear magnetic resonances is achieved by combining multiple-quantum evolution in the 27Al dimension and double-resonance decoupling in the 31P acquisition domain.
魔角旋转期间四极自旋系统中的多量子交叉极化。
DOI：
10.1006/jmre.1999.1922
发表时间：
2000
期刊：
Journal of magnetic resonance (San Diego, Calif. : 1997)
影响因子：
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作者：
Rovnyak,D;Baldus,M;Griffin,RG
通讯作者：
Griffin,RG