Piezofluorochromic properties and mechanism of an aggregation-induced emission enhancement compound containing N-hexyl-phenothiazine and anthracene moieties.
Piezofluorochromic properties and mechanism of an aggregation-induced emission enhancement compound containing N-hexyl-phenothiazine and anthracene moieties.
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DOI：
10.1021/jp202112e
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发表时间：
2011-05
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影响因子：
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通讯作者：
Xiqi Zhang;Zhenguo Chi;Jianyong Zhang;Hai-yin Li;Bingjia Xu;Xiaofang Li;Siwei Liu;Yi Zhang
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文献类型：
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作者：
Xiqi Zhang;Zhenguo Chi;Jianyong Zhang;Hai-yin Li;Bingjia Xu;Xiaofang Li;Siwei Liu;Yi Zhang
合成并研究了一种荧光化合物9,10-二（2-（10-己基-10 -吩噻嗪-3-基）乙烯基）蒽。结果表明，该化合物具有压电致荧光特性和聚集致发光增强效应。在压制（或研磨）或退火（或烟熏）过程中，光谱特性和形态结构是可逆的。压电致氟变色性质是在外界压力刺激下通过相变而产生的。单晶x射线衍射分析证实，外压作用下发生相变的原因是分子的扭曲构象导致固体分子堆积不良，层状层界面相互作用弱。
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.