PFCM Lab, FCM Institute, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China.
J Phys Chem B. 2011 Jun 16;115(23):7606-11. doi: 10.1021/jp202112e. Epub 2011 May 18.
A fluorescent compound, 9,10-bis(2-(10-hexyl-10H-phenothiazin-3-yl)vinyl) anthracene, has been synthesized and studied. The results show that the compound possesses piezofluorochromic properties as well as aggregation-induced emission enhancement effect. The spectroscopic properties and morphological structures are reversibly exhibited upon pressing (or grinding) or annealing (or fuming). The piezofluorochromic nature is generated through phase transformation under the stimulus of external pressure. The reason for the phase transformation caused by external pressure is ascribed to the twisted conformation of the molecule which leads to poor solid molecular packing and weak interactions in the interfaces of lamellar layers confirmed by its single-crystal X-ray diffraction analysis.
一种荧光化合物，9,10-双(2-(10-己基-10H-吩噻嗪-3-基)乙烯基)蒽，已被合成并进行了研究。结果表明，该化合物具有压致变色和聚集诱导发光增强效应。在受压（或研磨）或退火（或冒烟）时，光谱性质和形态结构会发生可逆变化。压致变色性质是通过外部压力刺激下的相转变产生的。外部压力引起相转变的原因归因于分子的扭曲构象，这导致层状界面处的固体分子堆积不良和相互作用较弱，其单晶 X 射线衍射分析也证实了这一点。
