@article{b87785d5b0ad449fa716c9281ceab91c,
title = "Inorganic-Organic Hybrid Photomechanical Crystals Consisting of Diarylethenes and Cage Siloxanes",
abstract = "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.",
author = "Ryota Kajiya and Seiya Sakakibara and Hanako Ikawa and Kenji Higashiguchi and Kenji Matsuda and Hiroaki Wada and Kazuyuki Kuroda and Atsushi Shimojima",
note = "Funding Information: The authors greatly appreciate Dr. Natsuhiko Sugimura, Mr. Makoto Miyashita, and Mr. Takahiro Goto (Materials Characterization Central Lab., Waseda Univ.) (44) for fruitful discussions and HR-MS/FE-SEM measurements. We are grateful to Dr. Masashi Yoshikawa, Dr. Shohei Saito, Dr. Naoto Sato, Mr. Masakazu Koike, Mr. Takamichi Matsuno, Mr. Keisuke Muramatsu, Mr. Kenta Kawamura, Mr. Takayuki Hoshi, and Mr. Ain Sakamoto (Waseda Univ.) for the fruitful discussions and experimental support. This work was supported in part by MEXT Grant-in-Aid for Scientific Research on Innovative Areas: “Fusion Materials” (Area No. 2206) and JSPS Challenging Research (Exploratory) (19K22237). Publisher Copyright: Copyright {\textcopyright} 2019 American Chemical Society.",
year = "2019",
month = nov,
day = "26",
doi = "10.1021/acs.chemmater.9b02941",
language = "English",
volume = "31",
pages = "9372--9378",
journal = "Chemistry of Materials",
issn = "0897-4756",
publisher = "American Chemical Society",
number = "22",
}