Piezofluorochromic Properties and Mechanism of an Aggregation-Induced Emission Enhancement Compound Containing N-Hexyl-phenothiazine and Anthracene Moieties

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• 作者：Xiqi Zhang ; Zhenguo Chi ; Jianyong Zhang ; Haiyin Li ; Bingjia Xu ; Xiaofang Li ; Siwei Liu ; Yi Zhang ; Jiarui Xu
• 刊名：Journal of Physical Chemistry B
• 出版年：2011
• 出版时间：June 16, 2011
• 年：2011
• 卷：115
• 期：23
• 页码：7606-7611
• 全文大小：910K
• 年卷期：v.115,no.23(June 16, 2011)
• ISSN：1520-5207

文摘

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.