Proton assisted insensitive nuclei cross polarization
Proton assisted insensitive nuclei cross polarization
复制标题
DOI：
10.1021/ja0650394
复制
发表时间：
2007-01-31
影响因子：
15
通讯作者：
Griffin, Robert G.
中科院分区：
文献类型：
--
作者：
Lewandowski, Jozef R.;De Paepe, Gael;Griffin, Robert G.
本文介绍了一种固态核磁共振N-15-C-13极化转移方案，适用于高B-0和高MAS频率，需要适中的射频功率和混频时间(1-6ms)。Pain-CP序列涉及异核重耦合动力学中丰富的邻近质子，为获得长距离N-15-C-13接触提供了新的工具。它应该是生物分子结构研究的主要兴趣。
This Communication presents a solid-state NMR N-15-C-13 polarization transfer scheme applicable at high B-0 and high MAS frequencies, requiring moderate rf powers and mixing time (1-6 ms). The sequence, PAIN-CP, involves the abundant nearby protons in the heteronuclear recoupling dynamics and provides a new tool for obtaining long distance N-15-C-13 contacts. It should be of major interest for biomolecular structural studies.