Aggregation-induced emission enhancement compounds containing triphenylamine-anthrylenevinylene and tetraphenylethene moieties
Aggregation-induced emission enhancement compounds containing triphenylamine-anthrylenevinylene and tetraphenylethene moieties
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含有三苯胺-蒽乙烯撑和四苯乙烯部分的聚集诱导的发射增强化合物
DOI：
10.1039/c0jm02571b
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发表时间：
2011-01-01
影响因子：
--
通讯作者：
Xu, Jiarui
中科院分区：
文献类型：
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作者：
Li, Haiyin;Chi, Zhenguo;Xu, Jiarui
通过Wittig-Horner反应合成了含三苯胺-蒽烯基、乙烯基和四苯乙烯基团的新化合物。这些化合物在良溶剂中有微弱的荧光发射，但在聚集体或固态时有较强的荧光，表明它们是聚集诱导的荧光增强化合物。其分子结构的对称性影响其聚集态结构和聚集态的光致发光性质。这些化合物显示出高的热稳定性，玻璃化转变温度在168-177 ℃之间，分解温度在521-537 ℃之间。化合物的HOMO能级在4.92-4.94 eV范围内，非常接近氧化铟锡阳极的功函数（4.8-5.0 eV）。其中一种化合物表现出明显的压致荧光行为。其压致荧光性质是通过改变分子的堆积方式而产生的。
New compounds containing triphenylamine-anthrylenevinylene and tetraphenylethene moieties are synthesized by the Wittig-Horner reaction. The compounds exhibit weak emission in good solvents, but strong fluorescence in aggregates or in the solid state, indicating that they are aggregation-induced emission enhancement compounds. The symmetry of their molecular structure affects their aggregation structures and photoluminescence emission properties in aggregation. These compounds show high thermal stabilities with glass transition temperatures between 168-177 degrees C and decomposition temperatures between 521-537 degrees C. The HOMO levels of the compounds are in the region of 4.92-4.94 eV, very close to the work function of indium tin oxide anode (4.8-5.0 eV). One of the compounds exhibits obvious piezofluorochromic behavior. The piezofluorochromic nature is generated through changing the mode of molecular packing under external pressure.