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A novel thermally activated delayed fluorescence macrocycle.

He-Ye Zhou1,2, Da-Wei Zhang1,2, Xiao-Ni Han1

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Area of Science:

  • Supramolecular Chemistry
  • Materials Science
  • Organic Chemistry

Background:

  • Macrocycles are versatile molecular hosts with tunable properties.
  • Luminescent materials are crucial for advanced optical and electronic applications.
  • Thermally Activated Delayed Fluorescence (TADF) offers efficient light emission pathways.

Purpose of the Study:

  • To synthesize a novel luminescent macrocycle.
  • To investigate its conformational flexibility and host-guest properties.
  • To evaluate its potential for efficient light emission via TADF.

Main Methods:

  • Convenient synthesis of a novel macrocyclic compound.
  • Characterization of conformational dynamics.
  • Assessment of solid-state host-guest interactions.
  • Photophysical measurements including photoluminescence quantum yield determination.

Main Results:

  • Successful synthesis of a luminescent macrocycle with flexible conformations.
  • Demonstrated interesting solid-state host-guest properties.
  • Achieved excellent thermally activated delayed fluorescence (TADF) emission.
  • Recorded a photoluminescence quantum yield of 80%, the highest reported for TADF macrocycles.

Conclusions:

  • The novel macrocycle is a promising material for host-guest chemistry and optoelectronics.
  • Its high TADF efficiency and quantum yield set a new benchmark for macrocyclic emitters.
  • The flexible nature and solid-state properties offer unique advantages for device applications.