应用化学2025，Vol.42Issue(3)：353-364,中插1-中插17,29.DOI:10.19894/j.issn.1000-0518.240260
柔性链连接的双-三苯胺类小分子和电化学聚合物的合成及其发光和电化学性能
Synthesis,Luminescence and Electrochemical Properties of Bis-Triphenylamine-Based Small Molecules and Electrochemical Polymers Connected by Flexible Chains
史宏宇 1谈东兴 2韩福社1
作者信息
- 1. 中国科学院长春应用化学研究所,绿色化学与过程实验室,长春 130022||中国科学技术大学应用化学与工程学院,合肥 230026
- 2. 中国科学院长春应用化学研究所,绿色化学与过程实验室,长春 130022
- 折叠
摘要
Abstract
Three bis-triphenylamine small molecules 1-3 linked by flexible amides or ester chains were designed and synthesized.The corresponding electrochemical polymer films were prepared by electrochemical polymerization(EP).Following which,the photoluminescence(PL)and electrochemiluminescence(ECL)properties of the small molecules and polymers were studied.The solutions and solids of three small molecules,and their corresponding polymers exhibited strong photoluminescence in the blue region of 407～468 nm.The relative fluorescence quantum yields of compounds 1-3 in CH2Cl2 are 77％,97％and 84％,respectively.Using tripropylamine as a co-reactant,the small molecule solid films of the three compounds exhibit general to good ECL with relative quantum yields of 0.52％,55.58％and 16.82％,respectively.Comparative analysis revealed that compound 2 displayed the strongest photoluminescence and electrochemiluminescence,while compound 1 showed the weakest property.Based on the 1H NMR spectroscopic analyses by varying the concentrations,compound 1 exhibits strong intermolecular hydrogen bonding,while compound 2 exhibits strong intramolecular hydrogen bonding.The difference in luminescence efficiency may be caused by different modes of intermolecular and intramolecular hydrogen bonding interactions.Finally,both the small molecule solid film and EP film of compound 2 could be used as an ECL luminophore for detection of dopamine(DA),with a limit of detection(LOD)of0.43 and 1.51 μmol/L,respectively.关键词
双-三苯胺/电化学聚合物膜/光致发光/电化学发光/多巴胺检测Key words
Bis-triphenylamine/Electrochemical polymer film/Photoluminescence/Electrochemiluminescence/Detection of dopamine分类
化学引用本文复制引用
史宏宇,谈东兴,韩福社..柔性链连接的双-三苯胺类小分子和电化学聚合物的合成及其发光和电化学性能[J].应用化学,2025,42(3):353-364,中插1-中插17,29.
