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Related Concept Videos

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Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)00:53

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Updated: May 21, 2025

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A Modular Approach Toward BN-Embedded Terrylene Diimides.

Kexiang Zhao1, Yu-Chun Xu1, Jing-Cai Zeng1

  • 1Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Center of Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P.R. China.

Angewandte Chemie (International Ed. in English)
|March 17, 2025
PubMed
Summary

This study introduces novel boron and nitrogen-embedded terrylene diimides (BN-TDIs) with tunable fluorescence extending to the near-infrared region. These BN-TDIs show potential as advanced n-type organic semiconductors for electronic applications.

Keywords:
BN CompoundsDipole MomentModular SynthesisOrganic SemiconductorsTerrylene Diimides

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Area of Science:

  • Organic Chemistry
  • Materials Science
  • Supramolecular Chemistry

Background:

  • Terrylene diimides (TDIs) are widely studied organic semiconductors.
  • Developing TDIs with extended fluorescence and improved electronic properties is an ongoing research area.
  • Incorporating heteroatoms offers a route to tune molecular properties.

Purpose of the Study:

  • To synthesize and characterize the first examples of heteroatom-embedded terrylene diimides (BN-TDIs).
  • To investigate the effect of boron and nitrogen (BN) incorporation on the photophysical and electronic properties of TDIs.
  • To explore the potential of BN-TDIs in organic electronics and supramolecular chemistry.

Main Methods:

  • Modular synthesis of BN-embedded imide building blocks.
  • Synthesis of BN-embedded terrylene diimides (BN-TDIs).
  • Characterization using single crystal X-ray diffraction, spectroscopy, and fabrication of organic thin film transistors (OTFTs).

Main Results:

  • Successfully synthesized BN-embedded TDIs (BN-TDIs) with controlled BN unit incorporation.
  • Achieved tunable dipole moments leading to extended fluorescence into the near-infrared region.
  • Observed enhanced carbonyl-π interactions in BN-TDIs compared to TDIs, facilitating supramolecular assembly.
  • BN-TDI-S demonstrated higher electron mobilities than TDI in organic thin film transistors.

Conclusions:

  • BN-TDIs represent a new class of organic materials with tunable optoelectronic properties.
  • The incorporation of BN units offers a versatile strategy for designing advanced organic semiconductors.
  • BN-TDIs show significant promise for applications in near-infrared fluorescence and n-type organic electronics.