A pillar[5]arene-based side-chain pseudorotaxanes and polypseudorotaxanes as novel fluorescent sensors for the selective detection of halogen ions

Shu Sun, Jian Bing Shi, Yu Ping Dong, Chen Lin, Xiao Yu Hu*, Le Yong Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)

Abstract

A pseudorotaxane and its polypseudorotaxanes formed between pillar[5]arene moieties and n-octylpyrazinium cations as novel fluorescent sensors for the selective detection of halogen ions were reported. A collapse of these pillar[5]arene-based pseudorotaxanes and polypseudorotaxanes occurred upon the addition of Cl-, Br-, and I- (tetrabutylammonium salts), respectively, leading to their fluorescence recovery. The fluorescence enhancement of the pseudorotaxane and the polypseudorotaxanes increases in the order of I- < Br- < Cl-, and the differences in fluorescence intensity could be easily distinguished by naked eyes under UV light illumination.

Original languageEnglish
Pages (from-to)987-992
Number of pages6
JournalChinese Chemical Letters
Volume24
Issue number11
DOIs
Publication statusPublished - Nov 2013

Keywords

  • Fluorescent sensor
  • Halogen ions detection
  • Pillar[5]arene
  • Polypseudorotaxanes

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