文献类型：期刊文献

英文题名：Design of fluorescence turn-on sensors with novel response mechanism based on C=N isomerization

作者：Zhong, Kailiang[1,2];Liu, Hailing[1];Jin, Shu[1];Chen, Xingliang[1]

机构：[1]Shaoxing Univ, Coll Text & Garment, Key Lab Clean Dyeing & Finishing Technol Zhejiang, Shaoxing 312000, Peoples R China;[2]Nanjing Univ, Dept Polymer Sci & Engn, Sch Chem & Chem Engn, Nanjing 210093, Peoples R China

年份：2021

卷号：195

外文期刊名：DYES AND PIGMENTS

收录：SCI-EXPANDED(收录号：WOS:000693343600005)、、WOS

基金：The work was financially supported by Scientific Research Fund of Shaoxing university, National Natural Science Foundation of China (No. 51407134), Program for Changjiang Scholars and Innovative Research Team in University and the Testing Foundation of Nanjing University.

语种：英文

外文关键词：Naphthalimide; Donor and acceptor; Aggregation mode; C=N isomerization; pH/ion sensing

外文摘要：A series of new type naphthalimide-based fluorescent molecules linking aniline-like groups via a coupling chain with -C=N- structure were developed as novel fluorescence chemosensors with high sensitivity and selectivity toward H+ in solution and acidic atmosphere as well as Al3+ in the presence of other cations. The fluorescence turn-on mechanism was studied and proved to be based on the C=N isomerization. For these fluorescent molecules with donor-acceptor structure, their luminescent wavelength and photophysical properties can be dominated by adjusting the structure of aniline-like groups and the chain length connecting with naphthalimide. All of these fluorescent molecules emitted strong solid-state fluorescence due to their inherent twisted geometries, and exhibited excellent thermal stability, which is beneficial for their application at high temperature.