Bridged Stilbenes: AIEgens Designed via a Simple Strategy to Control the Non-radiative Decay Pathway

Riki Iwai, Satoshi Suzuki, Shunsuke Sasaki, Amir Sharidan Sairi, Kazunobu Igawa, Tomoyoshi Suenobu, Keiji Morokuma, Gen ichi Konishi

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

To broaden the application of aggregation-induced emission (AIE) luminogens (AIEgens), the design of novel small-molecular dyes that exhibit high fluorescence quantum yield (Φfl) in the solid state is required. Considering that the mechanism of AIE can be rationalized based on steric avoidance of non-radiative decay pathways, a series of bridged stilbenes was designed, and their non-radiative decay pathways were investigated theoretically. Bridged stilbenes with short alkyl chains exhibited a strong fluorescence emission in solution and in the solid state, while bridged stilbenes with long alkyl chains exhibited AIE. Based on this theoretical prediction, we developed the bridged stilbenes BPST[7] and DPB[7], which demonstrate excellent AIE behavior.

Original languageEnglish
Pages (from-to)10566-10573
Number of pages8
JournalAngewandte Chemie - International Edition
Volume59
Issue number26
DOIs
Publication statusPublished - Jun 22 2020

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

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