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Room-Temperature Phosphorescence Vapochromism through Conformational Control.

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Summary
This summary is machine-generated.

Organic molecules rarely show solid-state room-temperature phosphorescence. This study demonstrates reversible phosphorescence switching in decorated persulfurated benzene, triggered by solvent-induced structural changes.

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Area of Science:

  • Organic Chemistry
  • Materials Science
  • Photophysics

Background:

  • Solid-state room-temperature phosphorescence in organic materials is uncommon.
  • Controlling phosphorescence color with external stimuli is challenging.

Purpose of the Study:

  • To demonstrate reversible phosphorescence switching in the solid state using organic molecules.
  • To explore the relationship between molecular structure and phosphorescence properties.

Main Methods:

  • Synthesis of decorated persulfurated benzene.
  • Investigation of solid-state phosphorescence under varying conditions.
  • Quantum-chemical calculations to elucidate luminescence mechanisms.

Main Results:

  • Achieved reversible phosphorescence switching in decorated persulfurated benzene.
  • Demonstrated that conformational changes induced by solvent molecules trigger luminescence changes.
  • Quantum-chemical calculations revealed distinct triplet state characters responsible for luminescence modulation.

Conclusions:

  • Structural factors are closely linked to solid-state phosphorescence.
  • The developed material serves as a benchmark for designing organic luminescent sensors.
  • Offers a pathway for creating stimuli-responsive luminescent materials.