各位化工大佬们，求教一个问题 我现在想做一个HH DQ-SQ NMR测试，然后我看文献中做这种二维氢谱测试...
固体核磁共振(solid-state NMR)压缩感知采样模式DQ-SQ伪随机为了提高固体二维双量子-单量子(DQ-SQ)谱的采集速度,根据DQ-SQ谱的自稀疏性,该文使用了一种基于压缩感知技术的重建算法.其优化的能量函数是有限差分约束的l1范数,并使用不同的权重对水平和竖直方向的有限差分项进行约束.该文分别对伪随机采样,全随机采样...
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Proton nuclear magnetic resonance (NMR) in solid state has gained significant attention in recent years due to the remarkable resolution and sensitivity enhancement afforded by ultrafast magic-angle-spinning (MAS). In spite of the substantial suppression of 1H-1H dipolar couplings, the proton spectral...
In spite of the substantial suppression of H-1-H-1 dipolar couplings, the proton spectral resolution is still poor compared to that of C-13 or N-15 NMR, rendering it challenging for the structural and conformational analysis of complex chemicals or biological solids. Herein, by utilizing the ...
Brown, Complete 1H resonance assignment of [b]-maltose from 1H-1H DQ-SQ CRAMPS and 1H (DQ-DUMBO)-13C SQ refocused INEPT 2D solid-state NMR spectra and first principles GIPAW calculations, Phys. Chem. Chem. Phys. 12 (2010) 6970-6983....