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Photoinduced Twisting of a Photochromic Diarylethene Crystal

Authors

  • Daichi Kitagawa,

    1. Department of Applied Chemistry, Graduate School of Engineering, Osaka City University, Sugimoto 3-3-138, Sumiyoshi-ku, Osaka 558-8585 (Japan)
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  • Dr. Hiroyasu Nishi,

    1. Department of Applied Chemistry, Graduate School of Engineering, Osaka City University, Sugimoto 3-3-138, Sumiyoshi-ku, Osaka 558-8585 (Japan)
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  • Prof. Dr. Seiya Kobatake

    Corresponding author
    1. Department of Applied Chemistry, Graduate School of Engineering, Osaka City University, Sugimoto 3-3-138, Sumiyoshi-ku, Osaka 558-8585 (Japan)
    • Department of Applied Chemistry, Graduate School of Engineering, Osaka City University, Sugimoto 3-3-138, Sumiyoshi-ku, Osaka 558-8585 (Japan)

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  • This work was partly supported by a Grant-in-Aid for Scientific Research (C) (24550161) from the Japan Society for the Promotion of Science (JSPS). D.K. appreciates Research Fellowships from JSPS for Young Scientists. The authors gratefully acknowledge the Rigaku Corporation for X-ray crystallographic analysis.

Abstract

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Let's do the twist! Molecular crystals of a diarylethene derivative exhibit photoreversible twisting upon irradiation with UV and visible light. The left-handed and right-handed helix formation is ascribed to the contraction of the crystal in a diagonal direction, depending on which face is irradiated with UV light.

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