SPIN DIFFUSION IN RESOLVED SOLID-STATE NMR-SPECTRA
SPIN DIFFUSION IN RESOLVED SOLID-STATE NMR-SPECTRA
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DOI：
10.1103/physrevb.32.5608
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发表时间：
1985-01-01
影响因子：
3.7
通讯作者：
ERNST, RR
中科院分区：
文献类型：
--
作者：
SUTER, D;ERNST, RR
光谱自旋扩散解析固态NMR光谱分析了各种类型的系统，包括偶极耦合自旋-（1/2）系统中存在的外来自旋，和系统的四极自旋和没有额外的偶极水库。塞曼和四极阶扩散被认为是通过单量子和双量子自旋扩散机制。特别注意的是支付的频率偏移依赖的自旋扩散率。理论预测验证自旋扩散测量使用二维光谱技术的C13氘，和N14共振单晶。
Spectral spin diffusion in resolved solid-state NMR spectra is analyzed for various types of systems, including dipolar coupled spin-(1/2) systems in the presence of extraneous spins, and systems of quadrupolar spins with and without an additional dipolar reservoir. Diffusion of Zeeman and quadrupolar order via single-quantum and double-quantum spin-diffusion mechanisms is considered. Special attention is paid to the frequency offset dependence of the spin-diffusion rate. The theoretical predictions are verified by spin-diffusion measurements using two-dimensional spectroscopy techniques for C 13 deuterium, and N 14 resonance in single crystals.