Photodynamic Chiral Molecular Switches with Thermal Stability: From Reflection Wavelength Tuning to Handedness Inversion of Self-Organized Helical Superstructures

Authors

  • Dr. Yannian Li,

    1. Liquid Crystal Institute and Chemical Physics Interdisciplinary Program, Kent State University, Kent, OH 44242 (USA)
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  • Dr. Chenming Xue,

    1. Liquid Crystal Institute and Chemical Physics Interdisciplinary Program, Kent State University, Kent, OH 44242 (USA)
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  • Mengfei Wang,

    1. Liquid Crystal Institute and Chemical Physics Interdisciplinary Program, Kent State University, Kent, OH 44242 (USA)
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  • Dr. Augustine Urbas,

    1. Materials and Manufacturing Directorate, Air Force Research Laboratory WPAFB, Dayton, OH 45433 (USA)
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  • Prof. Quan Li

    Corresponding author
    1. Liquid Crystal Institute and Chemical Physics Interdisciplinary Program, Kent State University, Kent, OH 44242 (USA)
    • Liquid Crystal Institute and Chemical Physics Interdisciplinary Program, Kent State University, Kent, OH 44242 (USA)

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  • This work is supported by the Air Force Office of Scientific Research (AFOSR FA9550-09-1-0193 and FA9950-09-1-0254).

Abstract

original image

Glückliche Wendung: Verbindungen mit zwei axial-chiralen Binaphthyl-Einheiten wurden als photodynamische chirale Dotierstoffe für nematische Flüssigkristalle entwickelt. Durch Bestrahlung mit UV-Licht konnte bei geeigneter Brückenlänge der Diederwinkel so verändert werden, dass die Binaphthyl-Einheiten von der cisoiden in die transoide Form übergingen, was zu einer Inversion der Helix-Gangrichtung führte.

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