4,4'-[(2,2-二苯乙烯)-1,1-双(4,1-亚苯基)]二吡啶的合成、表征及其聚集诱导发光性能研究

Comprehensive Chemical Experiment:Synthesis and Characterization of 4,4'-[(2,2-Diphenylethene-1,1-diyl) bis(4,1-phenylene)] dipyridine and Its Aggregation-Induced Emission Property

以提升学生的实验操作及创新能力为目的的综合化学实验,采用简单的2步法(缩合和Suzuki反应)合成了一种具有聚集诱导发光性能的化合物4,4′-[(2,2-二苯乙烯)-1,1-双(4,1-亚苯基)]二吡啶(简称2Py-TPE)。利用过滤、洗涤、萃取、干燥和柱层析等常用的有机分离操作手段对该化合物进行纯化;使用核磁共振仪、高分辨质谱仪、红外光谱仪及稳态瞬态荧光光谱仪对其进行结构表征和聚集诱导发光性能研究。该实验不仅可以促使学生了解以四苯乙烯衍生物为代表的聚集诱导发光材料的研究现状,而且能够培养学生的综合实验能力和科学探究能力。

This experiment,coming from teachers' scientific research,can synthesize a new compound 4,4'-[(2,2-diphenylethene-1,1-diyl)bis (4,1-phenylene)]dipyridine (2Py-TPE)with aggregation-induced emission (AIE)property by two simple steps (condensation and Suzuki reaction)in order to enhance the students' experimental operation and innovative ability.The target compound was purified by the common organic separation means,such as filtration,washing,extraction,drying and column chromatography.The characterization and AIE property of the compound was investigated by NMR,high-resolution mass spectrometry,infrared spectroscopy and transient fluorescence spectroscopy.This experiment can not only help students understand the research status of AIE materials based on tetraphenylethylene,but also cultivate students' comprehensive experimental ability and scientific research ability.