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1,3,4-Oxadiazole Derivative: Gelation Induced Emission Enhancement and Triple-Channel Acid Responsive Properties

  • 0Key Laboratory of Spin Electron and Nanomaterials of Anhui Province, School of Chemistry and Chemical Engineering, Suzhou University, Suzhou, 234000, Anhui, China. tianrenzhang@ahszu.edu.cn.
Journal of Fluorescence +

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June 21, 2025

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June 21, 2025

View abstract on PubMed

Summary

This summary is machine-generated.

A novel luminescent material, 4-POXD-B8, demonstrates gelation-induced emission enhancement (GIEE) and a triple-channel response to trifluoroacetic acid (TFA). This material shows potential for information storage applications.

Area Of Science

  • Materials Science
  • Supramolecular Chemistry
  • Organic Chemistry

Background

  • Stimuli-responsive luminescent materials are gaining attention for advanced applications.
  • Gelation-induced emission enhancement (GIEE) is a key phenomenon in developing smart materials.
  • 1,3,4-oxadiazole derivatives offer tunable photophysical properties.

Purpose Of The Study

  • To investigate the GIEE properties of a novel 1,3,4-oxadiazole derivative, 4-POXD-B8.
  • To explore the triple-channel response of 4-POXD-B8 to trifluoroacetic acid (TFA).
  • To demonstrate the potential of 4-POXD-B8 in information encryption-decryption.

Main Methods

  • Synthesis and characterization of the 1,3,4-oxadiazole derivative (4-POXD-B8).
  • UV-vis spectroscopy to study J-aggregate formation and acid-induced spectral changes.
  • 1H NMR spectroscopy to confirm molecular protonation.
  • Fluorescence spectroscopy to analyze emission enhancement and color changes.
  • Sol-gel transition studies to correlate GIEE with aggregation.

Main Results

  • 4-POXD-B8 exhibits significant GIEE, attributed to the formation of J-aggregates, confirmed by UV-vis spectra.
  • The material displays a unique triple-channel response (color, fluorescence, state change) to TFA.
  • Protonation of 4-POXD-B8 by TFA was confirmed via 1H NMR and UV-vis spectra, explaining the acid responsiveness.
  • Successful demonstration of information encryption and decryption using 4-POXD-B8 with TFA/triethylamine (TEA) under visible and UV light.

Conclusions

  • 4-POXD-B8 is a promising luminescent material with tunable GIEE and stimuli-responsive properties.
  • The J-aggregate formation and molecular protonation are key mechanisms for its observed responses.
  • The developed system offers a novel approach for optical information storage and security applications.

Keywords:

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