一种用于光诱导反应体系的原位NMR装置的设计与应用
收稿日期: 2024-06-19
网络出版日期: 2024-08-26
基金资助
中国科学院磁共振技术联盟科研仪器设备研制项目(2020GZL005)
Design and Application of an in situ NMR Device for Light-Induced Reaction Systems
Received date: 2024-06-19
Online published: 2024-08-26
利用原位核磁共振（NMR）技术结合新设计的光反应装置对光激发的氟超敏化现象进行了系统性研究, 证实了光反应装置的有效性. 该反应装置由光源、光路、同轴准直连接器和溶液混匀系统四部分组成，通过标准信噪比值（S/N）计算公式对9种含氟芳香化合物与6种光敏剂的组合进行了检测. 此外，还通过对光促开环反应的连续监测进一步验证了装置的适配性. 综合结果分析，该光反应装置可以很好地与市售液体NMR谱仪适配以应用于光化学反应的检测和研究.
关键词： 原位核磁共振（NMR）; 氟超敏化; 光化学反应; 原位反应监测
沈志强 , 邓亚博 , 杨培菊 , 胡霄雪 , 黄晓卷 , 许传芝 , 宋焕玲 . 一种用于光诱导反应体系的原位NMR装置的设计与应用[J]. 波谱学杂志, 2025 , 42(1) : 22 -33 . DOI: 10.11938/cjmr20243120
In the present study, a systematic investigation of photoexcited fluorine supersensitization is carried out using in situ nuclear magnetic resonance (NMR) technique in combination with a newly designed photoresponsive device, and the validity of the photoresponsive device is confirmed. The reaction device consists of a light source, a light path, a coaxial collimating connector, and a solution mixing system, and the combination of nine fluorinated aromatic compounds with six photosensitizers is tested by the standard signal-to-noise (S/N) formula. In addition, the device's suitability is further verified by continuously monitoring the photopromoted open-loop reaction. The results show that the photoreactor can be well adapted to the commercially available NMR spectrometer for photochemical reaction detection and research.
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