C3 Symmetric Hexaphenyltriphenylenehexamide: Molecular Design of Fluorescent Ferroelectrics

Takashi Takeda, Jianyun Wu, Nobuaki Ikenaka, Norihisa Hoshino, Ichiro Hisaki, Tomoyuki Akutagawa

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Organic materials with diverse molecular designs and assemblies may exhibit new multifunctional properties such as coupled ferroelectric, optical, and transport properties. Herein, we propose design guidelines for multifunctional organic ferroelectric materials based on areneoligoxamide. The key points are the careful selection of a disk-shaped central π scaffold and the symmetric introduction of terminal alkyl amide groups with high motility. The effectiveness of these guidelines are demonstrated through the synthesis of C3 symmetric hexaphenyltriphenylenehexamide (6TP), which showed a significant polarization-electric field hysteresis in the liquid crystalline (LC) state with fluorescent properties. Spacing between the ortho-diamide with a phenylene spacer not only expanded the molecular design for ferroelectric LC but also increased the thermal stability of areneoligoxamide.

Original languageEnglish
Pages (from-to)10608-10614
Number of pages7
Issue number38
Publication statusPublished - 2018 Oct 17


  • Amide
  • Ferroelectricity
  • Liquid Crystal
  • Materials Science
  • Triphenylene


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