论文标题
固态异核多量子光谱在150 kHz的魔法旋转频率下
Solid-state heteronuclear multiple-quantum spectroscopy under a magic-angle spinning frequency of 150 kHz
论文作者
论文摘要
我们特此证明，可以以150 kHz的魔法角度旋转频率进行1H检测到的15N-1H异核多量子光谱。虽然可以从旋转框架中的绝热脱氧方法产生的偶极顺序中直接激发15N-1H多量器相干，但从技术上讲，通过两个分别的化学移动周期获得1H和15N的异核多量器相干性的化学位移演化在技术上更有利。我们还表明，可以通过剪切相应的异核单量子相关光谱来获得异核多量子相关光谱。
We hereby demonstrate that 1H detected 15N-1H heteronuclear multiple-quantum spectroscopy can be carried out at a magic angle spinning frequency of 150 kHz. While the 15N-1H multiple-quantum coherences can be directly excited from the dipolar order created by the method of adiabatic demagnetization in the rotating frame, it is technically more advantageous to acquire the chemical shift evolution of the heteronuclear multiple-quantum coherence by two separate chemical shift evolution periods for 1H and 15N. We also show that the heteronuclear multiple-quantum correlation spectrum can be obtained by shearing the corresponding heteronuclear single-quantum correlation spectrum.
