Energy Transfer and <i>trans</i>–<i>cis</i> Isomerization in Dendrimer Aggregates

  • Yousuke Miura
    Graduate School of Pure and Applied Sciences, University of Tsukuba
  • Atsuya Momotake
    Graduate School of Pure and Applied Sciences, University of Tsukuba
  • Tomoo Sato
    Graduate School of Pure and Applied Sciences, University of Tsukuba
  • Yoko Kanna
    Faculty of Science, University of the Ryukyus
  • Masaya Moriyama
    Department of Applied Chemistry, Faculty of Engineering, Oita University
  • Yoshinobu Nishimura
    Graduate School of Pure and Applied Sciences, University of Tsukuba
  • Tatsuo Arai
    Graduate School of Pure and Applied Sciences, University of Tsukuba

Abstract

<jats:title>Abstract</jats:title> <jats:p>Stilbene-cored dendrimers having benzophenone peripheries with alkyl chains formed 1 µm and 4 nm aggregates in methylcyclohexane (MCH) for trans-1 and trans-2, respectively. Even in the aggregates, trans-1 underwent efficient trans–cis photoisomerization from the excited triplet state produced via intramolecular two-step energy transfer.</jats:p>

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