Department of Chemical Sciences, Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai 400 005, India.
J Magn Reson. 2010 Aug;205(2):269-75. doi: 10.1016/j.jmr.2010.05.009. Epub 2010 May 19.
We demonstrate a pulse sequence using symmetry-based rotor-synchronised RN(n)(nu) sequences for homonuclear dipolar decoupling that achieves pure absorption phase high-resolution (1)H spectra in solid-state NMR. This sequence is compared with the phase-modulated Lee-Goldburg scheme. Experimental results are shown for samples of glycine and L-histidine.HCl.H(2)O for magic-angle-spinning frequencies in the range of 14-30 kHz and at two different magnetic fields.
我们展示了一种基于对称的转子同步 RN(n)(nu)序列的脉冲序列，用于同核偶极解耦，在固态 NMR 中实现纯吸收相高分辨率 (1)H 谱。该序列与相位调制的 Lee-Goldburg 方案进行了比较。实验结果显示了在 14-30 kHz 范围内的魔角旋转频率和两个不同磁场下的甘氨酸和 L-组氨酸盐酸盐.H(2)O 样品的结果。
