A Drastic Red-shift of Tautomer Fluorescence Depending on the Substitution Pattern of Pyrene–Urea Compounds Generated by Excited State Intermolecular Proton Transfer

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Author(s)

    • Azuma Kyoko
    • Graduate School of Pure and Applied Sciences, University of Tsukuba
    • Arai Tatsuo
    • Graduate School of Pure and Applied Sciences, University of Tsukuba

Abstract

<p>We investigated the excited state intermolecular proton transfer of pyrene–urea compounds, <b>1PUP</b> and <b>4PUP</b>, followed by a tautomer formation in the presence of an acetate ion. The drastic red-shift and enhancement of fluorescence intensity of tautomer of <b>4PUP</b> were obtained in comparison to <b>1PUP</b>. The kinetics of formation and decay of excited state tautomer was revealed spectroscopically. Our findings will contribute to the molecular design of fluorescence materials with pyrene moieties based on the substitution patterns.</p>

Journal

  • Chemistry Letters

    Chemistry Letters 47(4), 483-486, 2018

    The Chemical Society of Japan

Codes

  • NII Article ID (NAID)
    130006638933
  • Text Lang
    ENG
  • ISSN
    0366-7022
  • Data Source
    J-STAGE 
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