A prototype of benzobis(imidazolium)-embedded conjugated polyelectrolyte: Synthesis by direct C–H arylation and fluorescent responses to anions  

作　　者：Chuangui Yu Qinze Zheng Linhua Wang Tianbao Wang Xuesong Zheng Ge Gao 

机构地区：[1]Key Laboratory of Green Chemistry and Technology of Ministry of Education,College of Chemistry,Sichuan University,Chengdu 610064,China

出　　处：《Chinese Chemical Letters》2022年第5期2425-2428,共4页中国化学快报（英文版）

基　　金：support from the National Natural Science Foundation of China(No.21772134);the Fundamental Research Funds for Central Universities(No.20826041D4117).

摘　　要：We report the convenient synthesis of a benzobis(imidazolium)-embedded conjugated polyelectrolyte pBBI by a Cu-catalyzed direct C–H arylation of a cationic benzobis(imidazolium)monomer with a di-iodide comonomer.pBBI shows weak fluorescence in solution due to rotation of the repeat units in the conjugated backbone,and enhanced fluorescence when electrostatically interacting with a variety of an-ions to form aggregates.Specially,pBBI responds to the bisulfite anion with intensified unique deep-blue fluorescence easily discriminated by naked eye.

关 键 词：Conjugated polyelectrolyte(CPE) Benzobis(imidazolium) C–H arylation Fluorescent anion sensing BISULFITE 

分 类 号：O631.5[理学—高分子化学]