Light-Driven Molecular-Crystal Actuators: Rapid and Reversible Bending of Rodlike Mixed Crystals of Diarylethene Derivatives

Authors

  • Fumitaka Terao,

    1. Department of Chemistry and Research Center for Smart Molecules, Rikkyo University, Nishi-Ikebukuro 3-34-1, Toshima-ku, Tokyo 171-8501 (Japan), Fax: (+81) 3-3985-2397
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  • Dr. Masakazu Morimoto,

    1. Department of Chemistry and Research Center for Smart Molecules, Rikkyo University, Nishi-Ikebukuro 3-34-1, Toshima-ku, Tokyo 171-8501 (Japan), Fax: (+81) 3-3985-2397
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  • Prof. Dr. Masahiro Irie

    Corresponding author
    1. Department of Chemistry and Research Center for Smart Molecules, Rikkyo University, Nishi-Ikebukuro 3-34-1, Toshima-ku, Tokyo 171-8501 (Japan), Fax: (+81) 3-3985-2397
    • Department of Chemistry and Research Center for Smart Molecules, Rikkyo University, Nishi-Ikebukuro 3-34-1, Toshima-ku, Tokyo 171-8501 (Japan), Fax: (+81) 3-3985-2397
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  • The present work was supported by a Grant-in-Aid for Scientific Research on Priority Areas “New Frontiers in Photochromism (471)” (No. 19050008) from the Ministry of Education, Culture, Sports, Science, and Technology (Japan).

Abstract

original image

Limber but strong: Two-component mixed crystals of diarylethene derivatives exhibit reversible, rapid, and fatigue-resistant bending upon alternate irradiation with UV and visible light (see picture). The crystals showed reversible curling into a hairpin shape while remaining crystalline.

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