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Keywords:

  • Phase-change materials;
  • Supramolecular structures;
  • Photoluminescence;
  • Aromatic-amine compounds
Thumbnail image of graphical abstract

Thermally driven reversible emission switching between different colors and solid-phase transformation are investigated for two aromatic-amine compounds bearing trifluoromethyl (CF3) groups. The phase-dependent emission properties are attributed to the different molecular packing properties and changeable molecular geometry for different solid phases (see figure).