聚集诱导发光异构体制备与光电性能测试实验设计  

Experiment Design for Preparation and Photoelectric Properties Testing of Aggregation-Induced Emission Isomers

作　　者：张然 郑修畅 赵云[1] 王虹 江海深[1] 王启立[1] ZHANG Ran;ZHENG Xiuchang;ZHAO Yun;WANG Hong;JIANG Haishen;WANG Qili(School of Chemical Engineering and Technology,China University of Mining and Technology,Xuzhou 221116,Jiangsu,China)

机构地区：[1]中国矿业大学化工学院,江苏徐州221116

出　　处：《实验室研究与探索》2025年第3期31-36,共6页Research and Exploration In Laboratory

基　　金：江苏省高等教育教改研究“重中之重”项目(2023JSJG027);全国煤炭行业高等教育研究项目(2021MXJG108);江苏省学位与研究生教育教学改革课题重大课题项目(JGKT24_A010);中国矿业大学实践教学和创新创业教育专项(2024SJ17);中国矿业大学实验技术研究与开发重大课题项目(S2023Z001);中国矿业大学教学研究与改革专项重点项目(2024JY003)。

摘　　要：为了实现科研创新和教学实践相融合,设计了一个涵盖分子设计合成、结构表征、光物理化学性质测试等内容的综合实验。合成了对位和间位连接的具有聚集诱导发光特性的四苯乙烯-咪唑异构体,并进行结构表征;利用紫外分光光度计、荧光分光光度计、X射线衍射仪以及电化学工作站研究异构体的光电性质,并深入分析性质差异的本质原因。结果表明,由于对位和间位取代导致分子间聚集方式不同,同分异构体在吸收、荧光、聚集诱导发光、压制变色、循环伏安等性质上均表现出显著差异。该对异构体作为模型化合物,直观地展示了结构的微小改变对性质产生的重大影响,有助于理解“结构决定性质”化学核心思想。To integrate scientific research innovation with teaching practice,a comprehensive experiment is designed which includes molecular design and synthesis,structural characterization,and the testing of photophysical and photochemical properties.Tetraphenylethylene-imidazole isomers with para and meta linkages,exhibite aggregation-induced emission characteristics,and these characteristics are synthesized and structurally characterized.The photoelectric properties of these isomers are investigated using ultraviolet spectrophotometry,fluorescence spectrophotometry,X-ray diffraction,and electrochemical workstations,and the intrinsic reasons for the differences in properties are deeply analyzed.The results indicate that due to the different intermolecular aggregation patterns caused by para and meta substitution,the isomers show significant differences in absorption,fluorescence,aggregation-induced emission,piezochromism,and cyclic voltammetry properties.These isomers,as model compounds,intuitively demonstrate the substantial impact of minor structural changes on properties,which aids in understanding the core chemical principle that structure determines properties.

关 键 词：设计合成 异构体 聚集诱导发光 光电性能 

分 类 号：G642[文化科学—高等教育学]