摘要
在溶剂热条件下,以H_(2)(3-PDCA)配体、BIPY配体和Cu(NO_(3))_(2)·3H_(2)O为反应物,构筑了两例新型Cu(Ⅱ)配位聚合物(简称:配合物):[Cu_(2)(H_(2)O)_(3)(3-PDCA)_(2)]·2H_(2)O(1)和{[Cu_(2)(BIPY)(3-PDCA)_(2)]·H_(2)O}_n(2)。其中,H_(2)(3-PDCA)为1-(3-羧基苯基)-5-甲基-4-氧代-1,4-二氢吡嗪-3-羧酸,BIPY为4,4’-联吡啶。铝离子(Al^(3+))的环境毒性及其检测需求促使本研究开发基于配合物的荧光探针。X射线单晶衍射表明:配合物1呈现特殊的四节点环状结构,配合物2呈现有趣的六节点菱形二维结构。PXRD、FT-IR和TGA证实了两种配合物的结构完整性。固体荧光测试表明,配合物1对Al^(3+)具有高选择性检测能力,检出限低至2.11×10^(-5) mol·L^(-1),优于多数同类材料。配合物1可作为一种高效Al^(3+)荧光传感器,为环境监测提供新策略。
Under solvothermal conditions,two novel Cu(Ⅱ)coordination polymers(abbreviated as complex)were constructed by 1-(3-carboxyphenyl)-5-methyl-4-oxo-1,4-dihydropyridazine-3-carboxylic acid abbreviated as H_(2)(3-PDCA),4,4′-bipyridine(BIPY)ligand and Cu(NO_(3))_(2)·3H_(2)O:[Cu_(2)(H_(2)O)_(3)(3-PDCA)_(2)]·2H_(2)O(1)and{[Cu_(2)(BIPY)(3-PDCA)_(2)]·H_(2)O}n(2).The environmental hazards of Al^(3+)drive the development of fluorescent probes based on coordination polymers.Single-crystal X-ray diffraction reveals that complex 1 adopts a four-node ring structure,while complex 2 exhibits a six-node rhombic 2D network.Their structural integrity was confirmed by PXRD,FT-IR,and TGA.Solid-state fluorescence studies demonstrate that complex 1 acts as a highly selective sensor for Al³⁺with a detection limit of 2.11×10^(-5)mol·L^(-1),surpassing most reported materials.This work highlights the potential of complex 1 as an efficient Al^(3+)fluorescent probe for environmental monitoring.
作者
舒航
王海涛
聂静嫄
黄菊
白静
王宝清
SHU Hang;WANG Haitao;NIE Jingyuan;HUANG Ju;BAI Jing;WANG Baoqing(College of Chemical Engineering,Henan Technical Institute,Zhengzhou 450042,China;Shandong Anran Nanometer Industry Development Co.,Ltd.,Weihai 264205,China)
出处
《人工晶体学报》
北大核心
2025年第9期1633-1641,共9页
Journal of Synthetic Crystals
基金
河南应用技术职业学院青年骨干教师基金(2022-GGJS-H007)
河南省教育厅教育科学、就业创业类研究基金(2021YB0561)
2025年度河南省科技攻关项目基金(252102410006)。
