使用X-[1H]交叉极化魔角旋转探头的X-[1H, 19F]三共振以及一个29Si-19F自旋对的表征。
X-[1H, 19F] triple resonance with a X-[1H] CP MAS probe and characterisation of a 29Si-19F spin pair.
作者信息
Bechmann Matthias, Hain Klaus, Marichal Claire, Sebald Angelika
机构信息
Bayerisches Geoinstitut, Universität Bayreuth, 95440 Bayreuth, Germany.
出版信息
Solid State Nucl Magn Reson. 2003 Feb-Mar;23(1-2):50-61. doi: 10.1016/S0926-2040(02)00014-0.
An economic approach for implementing X-[1H,19F] double-decoupling MAS NMR experiments with a conventional X-[1H] dual-channel CP MAS probe is demonstrated. The parameters characterising the isolated 29Si-19F spin pair in an organosilicon compound R(3)SiF (R = 9-anthryl) are determined. In addition, we discuss the optimum choice of experimental parameters for determining all 29Si-19F spin-pair parameters from straightforward 29Si MAS NMR spectra with only 1H decoupling applied during acquisition.
展示了一种使用传统的X-[1H]双通道CP MAS探头来实施X-[1H,19F]双去耦MAS NMR实验的经济方法。确定了有机硅化合物R(3)SiF（R = 9-蒽基）中孤立的29Si-19F自旋对的特征参数。此外，我们还讨论了在采集过程中仅施加1H去耦的情况下，从直接的29Si MAS NMR光谱中确定所有29Si-19F自旋对参数时实验参数的最佳选择。
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