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A neutral dinuclear Ir(iii) complex for anti-counterfeiting and data encryption.

Yang Jiang1, Guangfu Li1, Weilong Che1

  • 1Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin Province 130024, P. R. China. zhudx047@nenu.edu.cn zmsu@nenu.edu.cn.

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Summary

A new iridium(III) Schiff base complex, PIBIP, displays unique piezochromic luminescence and aggregation-induced emission. This material enables advanced anti-counterfeiting and data encryption applications.

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Area of Science:

  • Coordination Chemistry
  • Materials Science
  • Luminescence

Background:

  • Schiff base complexes are versatile ligands in coordination chemistry.
  • Piezochromic luminescence (PCL) and aggregation-induced emission (AIE) are desirable properties for advanced materials.
  • Iridium(III) complexes are known for their photophysical properties.

Purpose of the Study:

  • To synthesize and characterize a novel neutral dinuclear Iridium(III) Schiff base complex.
  • To investigate the piezochromic luminescence (PCL) and aggregation-induced emission (AIE) properties of the synthesized complex.
  • To explore the application of the complex in anti-counterfeiting and data encryption.

Main Methods:

  • Synthesis of a neutral dinuclear Iridium(III) Schiff base complex (PIBIP).
  • Characterization of the complex using spectroscopic and analytical techniques.
  • Evaluation of PCL and AIE properties through pressure and aggregation studies.
  • Fabrication of devices for anti-counterfeiting and data encryption.

Main Results:

  • Successful synthesis and characterization of the neutral dinuclear Iridium(III) Schiff base complex PIBIP.
  • Demonstration of both piezochromic luminescence (PCL) and aggregation-induced emission (AIE) behavior in PIBIP.
  • Fabrication of an efficient second-level anti-counterfeit trademark using PIBIP.
  • Development of a data encryption device utilizing the unique luminescent properties of PIBIP.

Conclusions:

  • The synthesized Iridium(III) Schiff base complex PIBIP exhibits dual PCL and AIE characteristics.
  • PIBIP is a promising material for developing advanced security features like anti-counterfeiting and data encryption.
  • This work highlights the potential of dinuclear Iridium(III) complexes in functional materials.