文献类型：期刊文献

英文题名：Ortho-pyridinyl anilines: A class of fluorescent chemoprobes for quantitatively visualizing proton donating ability

作者：Ye, Danfeng[1,2];Li, Zhongyu[2];Xu, Xiaoyan[2];Zhang, Man[2];Liu, Mouwei[2];Zou, Qi[3];Zhu, Liangliang[2]

机构：[1]Ningbo Univ Technol, Coll Mat Sci & Chem Engn, Ningbo 315211, Peoples R China;[2]Fudan Univ, Dept Macromol Sci, State Key Lab Mol Engn Polymers, Shanghai 200438, Peoples R China;[3]East China Univ Sci & Technol, Key Lab Adv Mat & Feringa Nobel Prize Sci Joint Re, Frontiers Sci Ctr Materiobiol & Dynam Chem, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China

年份：2023

卷号：218

外文期刊名：DYES AND PIGMENTS

收录：;EI(收录号：20232414231535);WOS:【SCI-EXPANDED(收录号:WOS:001019662400001)】；

基金：This work was supported by NSFC/China (22275038, 22175064) .

语种：英文

外文关键词：Bond strength (chemical) - Fluorescence - Hydrogen bonds

摘要：Proton donating ability is known to be a key factor during most chemical, physical, and biological processes; therefore, quantifying such an ability visibly is crucial for further research. However, there has long been a lack of excellent models to fulfil such a quantitative visualization. Here, we designed and synthesized a series of fluorescent chemoprobes based on ortho-pyridinyl anilines, whose fluorescence signal showed a quantitative relationship with its intermolecular hydrogen bond strength. On this basis, the proton donating ability of the external proton donors through competitive hydrogen bond formation could be shown quantitatively by virtue of the changes of the fluorescence.