Dynamic Nuclear Polarization Enhanced Nuclear Spin Optical Rotation
Dynamic Nuclear Polarization Enhanced Nuclear Spin Optical Rotation
复制标题
动态核极化增强核自旋旋光
DOI：
10.1002/anie.202016412
复制
发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Savukov, Igor
中科院分区：
文献类型：
--
作者：
Zhu, Yue;Hilty, Christian;Savukov, Igor
核自旋旋光（NSOR）已被研究为磁光效应，其具有应用潜力，包括混合光-核磁共振（NMR）光谱和无梯度成像。NSOR的固有性质使其检测相对不敏感，这阻止了它从概念验证转变为支持化学表征的方法。在这项工作中，溶解动态核极化技术被引入到提供核自旋极化，增加了几千倍的信噪比。在一次扫描中观察到1H和19 F核的NSOR信号，这使得这种效应适用于确定大分子中特定核的电子跃迁。
Nuclear spin optical rotation (NSOR) has been investigated as a magneto‐optical effect, which holds the potential for applications, including hybrid optical‐nuclear magnetic resonance (NMR) spectroscopy and gradientless imaging. The intrinsic nature of NSOR renders its detection relatively insensitive, which has prevented it moving from a proof of concept to a method supporting chemical characterizations. In this work, the dissolution dynamic nuclear polarization technique is introduced to provide nuclear spin polarization, increasing the signal‐to‐noise ratio by several thousand times. NSOR signals of1H and19F nuclei are observed in a single scan for diluted compounds, which has made this effect suitable for the determination of electronic transitions from a specific nucleus in a large molecule.