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Stimuli Responsive Features of Organic RTP Materials: An Intriguing Carbazole-Cyclic Triimidazole Derivative.

Daniele MalpicciAlessandra ForniChiara BottaClelia GianniniElena LucentiDaniele MarinottoDaniele MaverLucia CarlucciElena Cariati
Published in: Chemistry (Weinheim an der Bergstrasse, Germany) (2023)
Stimuli responsive luminescent materials possessing room temperature phosphorescence (RTP) are extremely desirable for various applications. The here investigated derivative of cyclic triimidazole (TT) functionalized with carbazole (Cz), namely TT-Ph-Cz, belongs to this class. TT-Ph-Cz possesses high conformational freedom resulting in rigidochromic and multi-stimuli responsive emissive behavior. It has been isolated as MeOH-solvated and de-solvated forms characterized by distinctive emissive features. In particular, the solvated form, in which hydrogen bonds with MeOH inhibit competitive non-radiative deactivation channels, possesses a higher quantum yield associated with a strong phosphorescence contribution which is preserved in DMSO/water solutions.
Keyphrases
  • room temperature
  • cancer therapy
  • ionic liquid
  • molecular dynamics
  • quantum dots
  • water soluble
  • light emitting
  • drug delivery
  • single molecule
  • sensitive detection
  • liquid chromatography