Inorganic-Organic Hybrid Photomechanical Crystals Consisting of Diarylethenes and Cage Siloxanes

Ryota Kajiya, Seiya Sakakibara, Hanako Ikawa, Kenji Higashiguchi, Kenji Matsuda, Hiroaki Wada, Kazuyuki Kuroda, Atsushi Shimojima

研究成果: Article

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Photomechanical materials have received increasing attention because of their wide range of potential applications. This paper reports the design of photoresponsive inorganic-organic hybrid molecules consisting of diarylethene and polyhedral oligomeric silsesquioxane (POSS) linked by amide bonds. The POSS modification of diarylethene enhanced the conversion ratio from the open- to the closed-ring isomers upon UV irradiation in a solution. When isobutyl-substituted POSSs were introduced, hydrogen-bonded molecular crystals with a long needle-like morphology were obtained. Reversible photochromic responses and photoinduced macroscopic bending of these crystals upon ultraviolet (UV) and visible light (Vis) irradiations have been achieved. The high fatigue resistance of the diarylethene moiety combined with enhanced thermal stability endowed by the siloxane moiety is promising for practical applications in actuators and other smart devices.

元の言語English
ページ(範囲)9372-9378
ページ数7
ジャーナルChemistry of Materials
31
発行部数22
DOI
出版物ステータスPublished - 2019 11 26

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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