节点文献
具有聚集诱导发光增强及聚集诱导圆二色性增强的五苯基吡咯衍生物的合成及其螺旋自组装
Aggregation-Induced Emission Enhancement and Aggregation-Induced Circular Dichroism of Chiral Pentaphenylpyrrole Derivatives and Their Helical Self-Assembly
【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。
【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.
- 【会议录名称】 第十五届全国光化学学术讨论会会议论文集
- 【会议名称】第十五届全国光化学学术讨论会
- 【会议时间】2017-08-21
- 【会议地点】中国甘肃兰州
- 【分类号】O626.13
- 【主办单位】中国化学会光化学专业委员会