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Photoresponsive triazole-based donor-acceptor molecules: Color change and heat/air-stable diradicals

Journal of Materials Chemistry C, ISSN: 2050-7526, Vol: 7, Issue: 10, Page: 3100-3104
2019
  • 31
    Citations
  • 0
    Usage
  • 8
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    31
    • Citation Indexes
      31
  • Captures
    8

Article Description

Photoinduced generation of stable radicals is important for photochromism, photoswitching and other applications, but was limited only to a few systems. An unprecedented series of triazole-based donor-acceptor organic molecules were found to form heat/air-stable triplet diradicals in the solid state and show a clear color change through photoinduced intramolecular charge separation, which was confirmed by electron spin resonance studies, ultrafast laser flash photolysis analyses and density functional theoretical calculations. In these molecules, electron-withdrawing substituents were more beneficial to the photoinduced charge separation than electron-donating ones. Moreover, a high molecular dipole moment was more conducive to photoinduced charge separation in the presence of an electron-withdrawing substituent.

Bibliographic Details

Ning Ning Zhang; Ming Sheng Wang; Guo Cong Guo; Shan Shan Sun; Ming De Li; Rong Jian Sa

Royal Society of Chemistry (RSC)

Chemistry; Materials Science

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