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 publicationProceedings of SPIE - The International Society for Optical Engineering
Volume8828
DOIs
Publication statusPublished - 2013
Externally publishedYes
EventLiquid Crystals XVII - San Diego, CA, United States
Duration: Aug 25 2013Aug 28 2013

Other

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

Fingerprint

Azobenzene
twisting
Photonics
photonics
Liquid
Optical rotation
Crystalline materials
Data storage equipment
Photoisomerization
Liquids
Dihedral angle
liquids
Molecular structure
Molecular dynamics
dihedral angle
molecular structure
Motion
Irradiation
molecular dynamics
Molecular Dynamics

Keywords

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

ASJC Scopus subject areas

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

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 Proceedings of SPIE - The International Society for Optical Engineering (Vol. 8828). [882803] https://doi.org/10.1117/12.2021602

Light-driven supramolecular chiral materials : Photoinduced control of liquid-crystalline helical structures and non-destructive erasable molecular memory for photonic applications. / Kawamoto, Masuki; Shiga, Natsuki; Takaishi, Kazuto; Sassa, Takafumi; Yamashita, Takashi; Ito, Yoshihiro.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8828 2013. 882803.

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

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 Proceedings of SPIE - The International Society for Optical Engineering. vol. 8828, 882803, Liquid Crystals XVII, San Diego, CA, United States, 8/25/13. https://doi.org/10.1117/12.2021602
Kawamoto M, Shiga N, Takaishi K, Sassa T, Yamashita T, Ito Y. Light-driven supramolecular chiral materials: Photoinduced control of liquid-crystalline helical structures and non-destructive erasable molecular memory for photonic applications. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8828. 2013. 882803 https://doi.org/10.1117/12.2021602
Kawamoto, Masuki ; Shiga, Natsuki ; Takaishi, Kazuto ; Sassa, Takafumi ; Yamashita, Takashi ; Ito, Yoshihiro. / Light-driven supramolecular chiral materials : Photoinduced control of liquid-crystalline helical structures and non-destructive erasable molecular memory for photonic applications. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8828 2013.
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