Synthesis and photophysical properties of blue-color emitting compounds having multi N-methylanthranillic (MANT) chromophore

Minoru Yamaji, Kanae Sano, Hideki Okamoto, Ichiro Matsuo

Research output: Contribution to journalArticle

Abstract

We prepared various compounds having the N-methylaminoanthranyl (MANT) moiety tethered with oligomethylene chains, and investigated the photophysical features in solution and the solid state based on the fluorescence quantum yields and lifetimes, and quantum chemical calculation. The molar absorption coefficient and fluorescence quantum yield were enhanced by an increase of the number of the MANT chromophore, resulting in an increase of the brightness as emission probes. Solid-state blue emission at room temperature was observed with moderate fluorescence quantum yields. The fluorescence rates in the solid state were found to be similar those in solution. From the results of the transient absorption measurements, the photophysical deactivation pathways in the solution were discussed. The studied multi-MANT compounds could be applicable to emissive photonic crystals and an exciton generating source for blue-color OLED.

Original languageEnglish
Article number112650
JournalJournal of Photochemistry and Photobiology A: Chemistry
Volume400
DOIs
Publication statusPublished - Sep 1 2020

Keywords

  • Fluorescence lifetime
  • Fluorescence quantum yield
  • MANT
  • Solid-state emission

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Physics and Astronomy(all)

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