Aggregation-induced chirality amplification of optically active fluorescent polyurethane and a cyclic dimer in the ground and excited states

Zhiyi Song, Hiroyasu Sato, Adriana Pietropaolo, Qingyu Wang, Shuhei Shimoda, Heshuang Dai, Yoshitane Imai, Hayato Toda, Takunori Harada, Yukatsu Shichibu, Katsuaki Konishi, Masayoshi Bando, Naofumi Naga, Tamaki Nakano

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Optically active linear polyurethane and a cyclic dimer were synthesized from 2,7-diisocyanatofluorene and 2,2′-dihydroxy-1,1′-binaphthyl. The circular dichroism (CD) spectral intensity of the polymer was amplified at a higher concentration through aggregate formation, while circularly polarized light (CPL) emission was not enhanced. The cyclic dimer's CPL emission was largely amplified (glum 1.1 × 10−2) due to intermolecular excimer formation through aggregation, while the CD intensity was not affected.

Original languageEnglish
Pages (from-to)1029-1032
Number of pages4
JournalChemical Communications
Volume58
Issue number7
DOIs
Publication statusPublished - 2022 Jan 21

ASJC Scopus subject areas

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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