标题：A cationic triarylborane as water-tolerant fluorescent chemosensor for fluoride anions
作者：Deng, Y.;Chen, Y.;Cao, D.;Liu, Z.;Li, G.
作者机构：[Deng, Y] School of Material Science and Engineering, University of Jinan, Jinan 250022, Shandong, China;[ Chen, Y] State Key Laboratory of Crystal Ma 更多
通讯作者地址：[Cao, DX]Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Shandong, Peoples R China.
来源：Sensors and Actuators, B. Chemical
关键词：Chemosensor;Fluoride anion;Triarylborane;Two-photon excited fluorescence
摘要：A new cationic triarylborane has been synthesized by methylation of a dimethylamino electron donor group in a neutral donor-π-acceptor type system, which also includes a dimesitylboryl group as electron acceptor. Its single- and two-photon excited fluorescence emission properties have been examined, and it has been found to be a highly fluorescent chemosensor for fluoride anions in THF solutions. This cation exhibits a higher sensitivity for fluoride anions compared to its neutral precursor, which is attributed to the increased Lewis acidity of the boron center, as well as its enhanced Coulombic attraction for anions. It has also been demonstrated to be water-tolerant.