Citation: Chuangui Yu, Qinze Zheng, Linhua Wang, Tianbao Wang, Xuesong Zheng, Ge Gao. A prototype of benzobis(imidazolium)-embedded conjugated polyelectrolyte: Synthesis by direct C‒H arylation and fluorescent responses to anions[J]. Chinese Chemical Letters, ;2022, 33(5): 2425-2428. doi: 10.1016/j.cclet.2021.09.092 shu

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

Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China

gg2b@scu.edu.cn

Received Date: 9 August 2021
Revised Date: 24 September 2021
Accepted Date: 25 September 2021
Available Online: 30 September 2021

Figures(4)

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 diiodide 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 anions to form aggregates. Specially, pBBI responds to the bisulfite anion with intensified unique deep-blue fluorescence easily discriminated by naked eye.
- Conjugated polyelectrolyte (CPE),
- Benzobis(imidazolium),
- C‒H arylation,
- Fluorescent anion sensing,
- Bisulfite
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