Aggregation of 4,8,12-Triazatriangulene Cation with Amphiphilic Side Chains: Emission Properties in Solution, in Aggregates, and in the Solid State

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Author(s)

    • Hirose Takashi
    • Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University
    • Sasatsuki Kengo
    • Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University
    • Noguchi Hiromu
    • Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University
    • Yokoyama Soichi
    • Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University
    • Matsuda Kenji
    • Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University

Abstract

<p>A 4,8,12-triazatriangulene (TATA) cation derivative bearing tetra(ethylene glycol) group was synthesized by direct functionalization of the TATA framework at the 2-, 6-, and 10-positions. Emission properties of the amphiphilic TATA derivative in three different environments—in the monomer state, in aggregates formed in aqueous media, and in the solid state—were carefully analyzed based on the radiative (<i>k</i><sub>f</sub>) and nonradiative (<i>k</i><sub>nr</sub>) rate constants. We found that the fluorescence quenching of the TATA cation derivative upon aggregation is dominantly attributed to the decrease in the <i>k</i><sub>f</sub> value but not to the change in the <i>k</i><sub>nr</sub> value.</p>

Journal

  • Chemistry Letters

    Chemistry Letters 45(9), 1090-1092, 2016

    The Chemical Society of Japan

Codes

  • NII Article ID (NAID)
    130005549088
  • Text Lang
    ENG
  • ISSN
    0366-7022
  • Data Source
    J-STAGE 
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