https://scholars.lib.ntu.edu.tw/handle/123456789/630006
標題: | An Elastic Organic Crystal Enables Macroscopic Photoinduced Crystal Elongation | 作者: | Chen, Yu-Shan Wang, Chih-Hsuan Hu, Yu-Hsuan Lu, Chun-Yi David JYE-SHANE YANG |
公開日期: | 22-三月-2023 | 出版社: | AMER CHEMICAL SOC | 卷: | 145 | 期: | 11 | 起(迄)頁: | 6024 | 來源出版物: | Journal of the American Chemical Society | 摘要: | Among the various types of photomechanical deformations of organic crystals, photoinduced elongation of millimeter-scale crystals has yet to be demonstrated. Here we report that the millimeter-sized crystalline rods of an anthracene-pentiptycene hybrid organic π-system (1) are highly elastic and able to elongate up to 21.6% or 0.40 mm without fragmentation upon undergoing [4 + 4] photodimerization reactions. Both the mechanical and photomechanical effects reveal a strong cohesion of the system, even at the interface of 1 and its photodimer 2 and under the conditions of randomized molecular packing, representing a new class of mechanically adaptive organic crystals. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/630006 | ISSN: | 0002-7863 | DOI: | 10.1021/jacs.2c13210 |
顯示於: | 化學系 |
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