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Isomerism in Complexes
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  3. Solvent-gated Multimodal Charge Transfer Interactions For Precise Supramolecular Chirality Control.
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  3. Solvent-gated Multimodal Charge Transfer Interactions For Precise Supramolecular Chirality Control.

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Solvent-Gated Multimodal Charge Transfer Interactions for Precise Supramolecular Chirality Control.

Zhuoer Wang1, Jiahui Lu1, Aiyou Hao1

  • 1Key Laboratory of Colloid and Interface Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, People's Republic of China.

Angewandte Chemie (International Ed. in English)
|May 5, 2026

View abstract on PubMed

Summary
This summary is machine-generated.

Researchers developed amino acid-based chiral materials with tunable charge transfer interactions. These materials exhibit controlled luminescence and chiroptical properties, enabling applications in advanced photonics and encryption.

Keywords:
charge transfer interactionfoldamerself‐assemblysupramolecular chirality

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Area of Science:

  • Materials Science
  • Supramolecular Chemistry
  • Organic Electronics

Background:

  • Charge transfer (CT) interactions are crucial in chiral optoelectronic materials.
  • Precise control over multimodal CT interactions remains a significant challenge in molecular design and implementation.

Purpose of the Study:

  • To develop novel amino acid-based folded structures for dynamic, multimodal charge transfer (CT) interactions.
  • To achieve tunable emission, chiroptical properties, and supramolecular chirality through controlled self-assembly.

Main Methods:

  • Integration of pyrene donors and aryl imide acceptors with tert-butyl groups in amino acid scaffolds.
  • Utilizing reversible solvent-gated folding/unfolding for dynamic CT interactions in solution.
  • Investigating self-assembly in polymer matrices and bottom-up approaches.
  • Controlling hierarchical self-assembly via solvent ratios to modulate CT stacking modes and chirality.

    • Main Results:

    • Dynamic through-space CT interactions leading to tunable emission (blue to yellow) and white-light generation.
    • Formation of robust CT complexes with excellent chiroptical properties in polymer matrices.
    • Amplified chiroptical signals and macroscopic chirality generation via self-assembly.
    • Solvent-controlled hierarchical self-assembly producing helical aggregates with inverted handedness.
    • Thermodynamically driven chiral-selective ripening achieving homochirality.

    Conclusions:

    • The developed architecture offers remarkable solvent-controlled modulation of luminescence, chiroptical handedness, and supramolecular chirality.
    • This provides a versatile platform for advanced photonics, multimodal encryption, and chiral material design.