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    • Tetraphenylethylene-based fluorescent conjugated microporous polymers for fluorescent sensing trinitrophenol

      LLYING REN TONGMOU GENG

      Volume 45 Published: 20 July 2022 Article ID 0137

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/045/0137

    • Keywords

       

      Conjugated microporous polymer; fluorescence sensor; trinitrophenol; tetraphenylethylene; dinitrophenol.

    • Abstract

       

      Two tetraphenylethylene-based fluorescent conjugated microporous polymers (TTTPT and TTDAT) were obtained by the Friedel-Crafts polymerization reactions catalysed by CH$_3$SO$_3$H. In virtue of containing tetraphenylethylene,triphenylamine and s-triazine units in their porous skeletons, the resulting TTTPT and TTDAT show excellent fluorescence sensing performance for trinitrophenol (TNP) with high quenching coefficients of 1.66 ${\times}$ 10$^4$ and 1.31 ${\times}$ 10$^5$ l mol$^{–1}$, respectively. TTDAT can also sense to dinitrophenol (DNP) with the Ksv of 2.70 ${\times}$ 10$^4$ l mol$^{–1}$. The fluorescent quenching mechanisms of TTTPT and TTDAT for selective detecting TNP attribute to conventional photoinduced electron-transfer mechanism, absorption competition quenching mechanism and/or the resonant energy transfer mechanism.

    • Author Affiliations

       

      LLYING REN1 TONGMOU GENG2

      1. Department of Pharmacy, Anqing Medical College, Anqing 246052, China
      2. AnHui Province Key Laboratory of Optoelectronic and Magnetism Functional Materials, School of Chemistry and Chemical Engineering, Anqing Normal University, Anqing 246011, China

    • Dates

       
      Published
      20 July 2022
      Manuscript received
      15 January 2022
      Accepted
      21 March 2022
      Final version published online
      20 July 2022

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