波谱学杂志2017，Vol.34Issue(4)：421-428,8.DOI:10.11938/cjmr20172557
DITFB/4-OH-TEMPO体系中卤键作用的19FDNP研究
The Effect of Intermolecular Halogen Bond on 19F DNP Enhancement in 1, 4-Diiodotetrafluorobenzene/4-OH-TEMPO Supramolecular Assembly
摘要
Abstract
Halogen bond, as hydrogen bond, is a non-covalent bond. Dynamic nuclear polarization (DNP) technique has been used previously to study hydrogen bonds-mediated intermolecular interactions. However, no study has been carried out so far to study the halogen bond-mediated intermolecular interactions with DNP. In this work, 19F DNP polarization efficiency of the halogen bonds existing in supramolecular assembling by 4-OH-TEMPO and 1,4-diiodotetrafluorobenzene (DITFB) was studied on a home-made DNP system. The formation of intermolecular halogen bonds appeared to increase 19F DNP polarization efficiency, suggesting that the spin-spin interactions among electrons were weakened by the halogen bonds, resulting in an increased T2e and a larger saturation factor.关键词
19F动态核极化(19FDNP)/卤键/1,4-二碘四氟苯(DITFB)/4-羟基-2,2,6,6-四甲基吡啶-1-氧自由基(4-OH-TEMPO)/DNP增强Key words
19F DNP/halogen bond/DITFB/4-OH-TEMPO/DNP enhancement分类
数理科学引用本文复制引用
高珊,黄重阳,张震,陈俊飞,贺玉贵,陈黎,陈方,张金枝,刘朝阳..DITFB/4-OH-TEMPO体系中卤键作用的19FDNP研究[J].波谱学杂志,2017,34(4):421-428,8.基金项目
国家自然科学基金资助项目(11575287, 11405264). （11575287, 11405264）
