A novel self-assembled supramolecular sensor based on thiophene-functionalized imidazophenazine for dual-channel detection of Ag+ in an aqueous solution

Herein, a novel self-assembled supramolecular sensor (S1) based on thiophene-functionalized imidazophenazine for Ag+ was designed and synthesized. It showed dual-channel detection properties for Ag+ based on the competitive mechanism of supramolecular self-assembly with high sensitivity and selectivity even in the presence of other metal ions. Its detection limit for Ag+ is 8.18 × 10−9 M. Upon the addition of Ag+, the solution changes from yellow to light purple and the fluorescence is quenched. Furthermore, the sensing mechanism between Ag+ and S1 is investigated via IR and 1H NMR spectroscopy, mass spectrometry, and density functional theory calculations.

• Publication year

  2017

• Venue

  RSC Advances

• Publication date

  2017-11-16

• Fields of study

  Chemistry

• Identifiers
  DOI 10.1039/C7RA09597J
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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