Light-driven supramolecular chiral materials: Photoinduced control of liquid-crystalline helical structures and non-destructive erasable molecular memory for photonic applications

Masuki Kawamoto, Natsuki Shiga, Kazuto Takaishi, Takafumi Sassa, Takashi Yamashita, Yoshihiro Ito

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Light-driven supramolecular chiral materials containing an azobenzene moiety as a photoresponsive part and binaphthyl moiety as a chiral part were designed. We found that the dynamic molecular twisting motion of the binaphthyl moiety could be achieved by irradiation of UV or visible light to cause photoisomerization of the azobenzene moiety. The twisting motion induced by the photochromic reaction gave rise to large change in the molecular structure and the value of optical rotation. The chiral materials were demonstrated to behave uniquely as photomodulation of liquid-crystalline helical structures and non-destructive erasable chiroptical memory through photoinduced switching of the dihedral angle of the binaphthyl moiety.

Original languageEnglish
Title of host publicationLiquid Crystals XVII
DOIs
Publication statusPublished - Nov 4 2013
Externally publishedYes
EventLiquid Crystals XVII - San Diego, CA, United States
Duration: Aug 25 2013Aug 28 2013

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8828
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherLiquid Crystals XVII
CountryUnited States
CitySan Diego, CA
Period8/25/138/28/13

Keywords

  • Azobenzenes
  • Binaphthyl moieties
  • Chiroptical properties
  • Helical structures
  • Liquid crystals
  • Macrocycles
  • Molecular memory

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Kawamoto, M., Shiga, N., Takaishi, K., Sassa, T., Yamashita, T., & Ito, Y. (2013). Light-driven supramolecular chiral materials: Photoinduced control of liquid-crystalline helical structures and non-destructive erasable molecular memory for photonic applications. In Liquid Crystals XVII [882803] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8828). https://doi.org/10.1117/12.2021602