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Crystals 2015, 5(4), 551-561;

Quantitative Evaluation of Photoinduced Bending Speed of Diarylethene Crystals

Department of Applied Chemistry, Graduate School of Engineering, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
Institute of Industrial Science, University of Tokyo, Meguro-ku, Tokyo 153-8505, Japan
Author to whom correspondence should be addressed.
Academic Editor: Rui Tamura
Received: 30 August 2015 / Revised: 30 October 2015 / Accepted: 30 October 2015 / Published: 6 November 2015
(This article belongs to the Special Issue Chiral Organic Crystal)
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We investigated photoinduced crystal bending behavior of various photochromic diarylethenes. In all the diarylethene derivatives we used in this work, the relationship between the initial photoinduced bending speed and the crystal thickness was well explained by the easy-handled Timoshenkoʼs bimetal model. Moreover, we proposed a quantitative analysis method to reveal the relationship between the bending speed and the molecular structure of diarylethenes. These results provide the quantitative evaluation method of the photoinduced crystal bending speed. View Full-Text
Keywords: photochromism; diarylethene; single crystal; photomechanical crystal; bending photochromism; diarylethene; single crystal; photomechanical crystal; bending

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Kitagawa, D.; Iwaihara, C.; Nishi, H.; Kobatake, S. Quantitative Evaluation of Photoinduced Bending Speed of Diarylethene Crystals. Crystals 2015, 5, 551-561.

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