聚集诱导发光铂(Ⅱ)配合物对硝基芳烃的高效发光检测  

High-efficiency Luminescence Detection of Nitroaromatics by Platinum(Ⅱ)Complex with Aggregation-induced Emission

作　　者：操青松 曾欣 王晓理 刘佳铭 闫国胜 王光辉 张宇豪 狄玲 邢杨 凌江华 CAO Qingsong;ZENG Xin;WANG Xiaoli;LIU Jiaming;YAN Guosheng;WANG Guanghui;ZHANG Yuhao;DI Ling;XING Yang;LING Jianghua(School of Petrochemical Engineering,Liaoning Petrochemical University,Fushun 113001,China;Petro China Marketing Company,Wuhan 430000,China;Petro China Fushun Petrochemical Company Catalyst Factory,Fushun 113001,China)

机构地区：[1]辽宁石油化工大学石油化工学院,辽宁抚顺113001 [2]中国石油天然气销售公司,湖北武汉430000 [3]中国石油抚顺石化公司催化剂厂,辽宁抚顺113001

出　　处：《发光学报》2024年第2期364-373,共10页Chinese Journal of Luminescence

基　　金：辽宁省教育厅科学研究经费项目(LJKMZ20220745,JYTMS20231439)。

摘　　要：合成了一例三苯胺基团修饰的铂(Ⅱ)配合物PtppyTPA,并详细地表征了其结构及光物理性质。研究表明,三苯胺基团可有效激活PtppyTPA的聚集诱导发光(AIE)性能,使其在含水量为50%的乙腈中呈现显著的发光增强。以AIE活性的PtppyTPA为发光探针实现了对4种硝基芳烃包括硝苯地平(Nifedipine,NFD)、5-氯-2-硝基三氟甲苯(5-chloro-2-nitrotrifluorotoluene,ClNTFT)、4-溴-1-氟-2-硝基苯(4-bromo-1-fluoro-2-nitrobenzene,BrFNBz)及3-硝基三氟甲苯(3-nitrotrifluorotoluene, NTFT)的发光检测,利用Stern-Volmer方程拟合检测数据并计算了检测效率及检测限。PtppyTPA对上述硝基芳烃的检测效率分别为11.12,0.27,0.25,0.21 L/mmol;检测限分别为7.1,291.0,314.3,374.2μmol/L。PtppyTPA对NFD具有最高的检测效率和最低的检测限。前线轨道能级及光谱交叠实验表明,PtppyTPA对NFD、ClNTFT、BrFNBz及NTFT的检测机理为电子转移。A platinum(Ⅱ)complex PtppyTPA modified with triphenylamine is synthesized,whose structure and photophysical properties are characterized.The results show that triphenylamine can effectively activate the aggrega‐tion-induced emission(AIE)property of PtppyTPA,which can significantly enhance its luminescence in acetonitrile with water content of 50%.The AIE active PtppyTPA is employed as the luminescent probe to realize the lumines‐cence detection of nitroaromatics,including nifedipine(NFD),5-chloro-2-nitrotrifluorotoluene(ClNTFT),4-bro‐mo-1-fluoro-2-nitrobenzene(BrFNBz),and 3-nitrotrifluorotoluene(NTFT).Stern-Volmer equation was utilized to fit the detection data and calculate the detection efficiency with detection limits.The detection efficiency of PtppyT‐PA for nitroaromatics above is 11.12,0.27,0.25,0.21 L/mmol with the detection limits of 7.1,291.0,314.3,374.2µmol/L,respectively.PtppyTPA exhibits the highest detection efficiency and the lowest detection limit to NFD.The results show that the detection mechanism of NFD,ClNTFT,BrFNBz and NTFT by PtppyTPA can be at‐tributed to electron transfer.

关 键 词：铂(Ⅱ)配合物 聚集诱导发光 硝苯地平 发光猝灭 密度泛函理论 

分 类 号：TQ61[化学工程—精细化工]