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Photoinduced Carbonyl Radical Luminescence in Host-Guest Systems.

Juanjuan LiuHuajie YuFarhan SiddiqueGlib V BaryshnikovHongwei Wu
Published in: ACS applied materials & interfaces (2023)
Developing a free radical emission system in different states, especially in water, is highly challenging and desired. Herein, a host-guest coassembly strategy was used to protect the in situ photoactivated radical emission of carbonyl compounds in solid and aqueous solutions by doping them into a series of small molecules with hydroxyl groups. The intermolecular interactions between host and guest and the electron-donating ability of the hydroxyl group can significantly promote the formation and stabilization of luminescence by carbonyl radicals. Accordingly, the stimuli-responsive property of the free radical system was investigated in detail, and the self-assembled aggregates showed photoactive and thermoresponsive behaviors. In addition, an advanced ammonia compound identification system can be built based on a radical emission system. Our design strategy sheds light on developing free radical systems that can emit in various states, which will greatly broaden the application range of free radicals.
Keyphrases
  • quantum dots
  • cancer therapy
  • high resolution
  • solid state
  • light emitting
  • electron transfer
  • solar cells
  • electron microscopy