Synthesis, Aggregation-Induced Emission, and Liquid Crystalline Structure of Tetraphenylethylene–Surfactant Complex via Ionic Self-Assembly
Synthesis, Aggregation-Induced Emission, and Liquid Crystalline Structure of Tetraphenylethylene–Surfactant Complex via Ionic Self-Assembly
复制标题
离子自组装四苯乙烯·表面活性剂配合物的合成、聚集诱导发射和液晶结构
DOI：
10.1021/acs.jpcc.6b09901
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发表时间：
2016-11
期刊：
影响因子：
--
通讯作者：
Xiang-Kui Ren
中科院分区：
文献类型：
--
作者：
Jun-Feng Zheng;Li;ong Deng;Er-Qiang Chen;Xiang-Kui Ren
采用离子自组装伊萨制备了一种具有液晶螺旋结构和聚集诱导发光特性的新型四苯乙烯材料。通过紫外-可见吸收光谱、光致发光光谱、差示扫描量热法、偏光显微镜、一维和二维X射线衍射和傅里叶变换红外光谱等实验手段，研究了配合物的AIE活性、相行为、自组装结构和分子堆积行为。实验结果表明，伊萨配合物具有高效的发光性能，固态发光量子产率高达46%。同时，配合物可以自组装成不同的有趣的结构，这些结构对周边链运动敏感。在加热过程中，配合物在室温下呈现低序螺旋超分子结构，然后形成另一个高序螺旋分子相。
A novel tetraphenylethylene material with liquid crystalline (LC) helical structure and aggregation-induced emission (AIE) property was prepared by ionic self-assembly (ISA). The AIE activity, phase behavior, self-assembly structure, and molecular packing behavior of the complex were then elucidated via a combination of different experimental techniques such as UV–vis absorption spectra, photoluminescence spectra, differential scanning calorimetry, polarized optical microscopy, one- and two-dimensional X-ray diffraction, and Fourier transform infrared spectroscopy. The experimental results reveal that the ISA complex possesses high-efficiency luminescent property with quantum yield as high as 46% in solid state. Meanwhile, the complex could self-assemble into different interesting structures which are sensitive to peripheral chain motions. During heating, the complex takes a low-ordered helical supramolecular structure at ambient temperature and then forms another LC phase with high-ordered helical molecu...
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