Oxygen-17 dynamic nuclear polarisation enhanced solid-state NMR spectroscopy at 18.8 T
Oxygen-17 dynamic nuclear polarisation enhanced solid-state NMR spectroscopy at 18.8 T
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DOI：
10.1039/c6cc09743j
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发表时间：
2017-02-28
影响因子：
4.9
通讯作者：
Blanc, Frederic
中科院分区：
文献类型：
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作者：
Brownbill, Nick J.;Gajan, David;Blanc, Frederic
我们报告了18.8T下O-17动态核极化（DNP）增强的固态NMR实验。研究了Mg（OH）（2）化合物的几种制剂。当使用Overhauser偏振转移方案将固体颗粒掺入掺杂有BDPA的玻璃态邻三联苯基质中时，可以获得17的信号增强因子，而TEKPol启用的交叉效应机制产生略低的增强，但更省时的数据采集。
We report O-17 dynamic nuclear polarisation (DNP) enhanced solid-state NMR experiments at 18.8 T. Several formulations were investigated on the Mg(OH)(2) compound. A signal enhancement factor of 17 could be obtained when the solid particles were incorporated into a glassy o-terphenyl matrix doped with BDPA using the Overhauser polarisation transfer scheme whilst the cross effect mechanism enabled by TEKPol yielded a slightly lower enhancement but more time efficient data acquisition.