【作者】 支俊格； 张龙龙； 李园园；

【Author】 Long-long Zhang;Yuan-yuan Li;Jun-ge Zhi;Beijing Key Laboratory of Photoelectronic Conversion Materials,Beijing Institute of Technology;

【机构】 北京光电转换材料重点实验室；

【摘要】 本文通过五苯基吡咯与手性的苯乙胺反应得到了对映体(S)-PPPtriAm、(R)-PPPtriAm及外消旋体rac-PPPtriAm。此三种化合物具有很好的聚集诱导发光增强效应。其中,手性取代基的引入使手性化合物(S)-ppptriam和(R)-ppptriam具有明显的聚集诱导圆二色性增强效应(AICD),且具有较明显的镜像卡顿效应和CPL信号。其中左右旋对映体能够自组装成纳米纤维。因此,该对映体在光学材料及手形识别上具有潜在的应用价值。更多还原

【Abstract】 A pair of enantiomers(S)-PPPtriAm and(R)-PPPtriAm with three chiral substituents and their raceme rac-PPPtriAm derived from pentaphenylpyrrole were prepared by covalently attaching(R)-/(S)-or racemic 1-phenylethylamine to conjugated 1-biphenyl-2,3,4,5-tetraphenyl pyrrole. The compounds exhibit aggregation-induced emission enhancement(AIEE) features.The introduction of chiral substituents endows the chiral compounds(S)-PPPtriAm and(R)-PPPtriAm with distinct aggregation-induced circular dichroism(AICD) with mirror-image Cotton effects, and chiral polarized luminescence(CPL) properties.The chiral compounds(S)-PPPtriAm and(R)-PPPtriAm can self-assemble into nanofibers. Herein, the enantiomers are expected to have potential application in photoelectronic materials or enantiomer recognition.更多还原