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Tuning the thermo- and mechanoresponsive behavior of luminescent cyclophanes


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タイトル: Tuning the thermo- and mechanoresponsive behavior of luminescent cyclophanes
著者: Sagara, Yoshimitsu 著作を一覧する
Weder, Christoph 著作を一覧する
Tamaoki, Nobuyuki 著作を一覧する
発行日: 2016年 8月26日
出版者: The Royal Society of Chemistry
誌名: RSC Advances
巻: 6
号: 84
開始ページ: 80408
終了ページ: 80414
出版社 DOI: 10.1039/C6RA18348D
抄録: Many cyclophanes have been investigated in dilute solution, where their internal cavities are accessible for supramolecular interactions. However, their photophysical properties in the solid state remain largely unexplored. We here report a new mechano- and thermoresponsive luminescent cyclophane that is comprised of two 9,10-bis(phenylethynyl)anthracene moieties and features two hexaethylene glycol bridges. The compound was found to exhibit a nematic liquid-crystalline phase at elevated temperature. X-ray diffraction patterns confirm that thermal and mechanical treatments induce changes in the molecular assembly, which are the basis for the observed photoluminescent color variations. The stimuli-responsive behavior of the new compound is quite different from that of a previously reported cyclophane with similar structure but shorter bridges. Thus, merely changing the ring size is an effective tool to tailor the stimuli-responsiveness and the phase behaviour of luminescent cyclophanes.
資料タイプ: article
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 玉置 信之


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