Influence of Carbazolyl Groups on Properties of Piezofluorochromic Aggregation-Enhanced Emission Compounds Containing Distyrylanthracene
Influence of Carbazolyl Groups on Properties of Piezofluorochromic Aggregation-Enhanced Emission Compounds Containing Distyrylanthracene
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DOI：
10.1021/jp306452n
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发表时间：
2012-10
影响因子：
3.7
通讯作者：
Xiqi Zhang;Zhenguo Chi;Xie Zhou;Siwei Liu;Yi Zhang;Jia-rui Xu
中科院分区：
文献类型：
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作者：
Xiqi Zhang;Zhenguo Chi;Xie Zhou;Siwei Liu;Yi Zhang;Jia-rui Xu
合成了含单咔唑基和三咔唑基的二苯乙烯基蒽衍生物（AnPCz和AnPCz 3），并通过核磁共振、质谱、元素分析、光致发光、紫外吸收、广角X射线衍射等技术进行了表征。合成了另一种不含咔唑基的化合物，二苯乙烯基蒽（AnP）作为对比。结果表明，咔唑基的种类对三种聚合增强发光（AEE）化合物的压致荧光性能有显著影响。化合物AnPCz和AnPCz 3表现出不同的压致荧光变色性能，并可逆地切换后，研磨退火或研磨发烟。通过在二苯乙烯基蒽AEE结构中引入咔唑基团，可以大大增强其压致荧光变色活性。本研究建立的一般结构-性质关系将有助于研究人员识别和合成更多的馅饼。
Distyrylanthracene derivatives (AnPCz and AnPCz3) with monocarbazolyl and tricarbazolyl groups were synthesized and characterized via nuclear magnetic resonance, mass spectrometry, elemental analysis, photoluminescence, ultraviolet absorption, wide-angle X-ray diffraction, and other techniques. Another compound, distyrylanthracene (AnP), without any carbazolyl group was synthesized for comparison. The results show that the piezofluorochromic properties of the three aggregation-enhanced emission (AEE) compounds were significantly influenced by the variety of carbazolyl groups in the molecular structures. Compounds AnPCz and AnPCz3 exhibited distinct piezofluorochromic properties and switched reversibly upon grinding–annealing or grinding–fuming. The piezofluorochromic activity can be greatly enhanced by the introduction of carbazole groups in the distyrylanthracene AEE structure. The general structure–property relationships established in this study will help researchers to identify and synthesize more pie...