Synthesis of tunable, red fluorescent aggregation-enhanced emissive organic fluorophores: stimuli-responsive high contrast off–on fluorescence switching

@article{Hariharan2018SynthesisOT,
  title={Synthesis of tunable, red fluorescent aggregation-enhanced emissive organic fluorophores: stimuli-responsive high contrast off–on fluorescence switching},
  author={Palamarneri Sivaraman Hariharan and Parthasarathy Gayathri and Anup K. Kundu and Subramanian Vedhanarayanan Karthikeyan and Dohyun Moon and Savarimuthu Philip Anthony},
  journal={CrystEngComm},
  year={2018},
  volume={20},
  pages={643-651}
}
Triphenylamine (TPA) and N-methylbarbituric acid/indanedione-based donor–acceptor derivatives were synthesized and demonstrated molecular conformation and packing dependent tunable fluorescence from yellow to red in the solid state. TPA with N-methylbarbituric acid (BA-1) showed bright yellow fluorescence (λmax = 550 nm, Φf = 22.8%) whereas OCH3 substitution at the phenyl rings of TPA, (BA-2 and BA-3) produced strong red (λmax = 602 nm, Φf = 41.1%) and orange fluorescent solids (λmax = 582 nm… Expand
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  • 2020
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