基于双核{Zn2(COO)4}次级构筑单元的二维发光配位聚合物的晶体结构和对Fe3+的检测 |
Two-Dimensional Luminescent Coordination Polymer Based on Dinuclear {Zn2(COO)4} Second Bulidings Units: Crystal Structure and Detection of Fe3+ |
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摘要: 使用H2L配体(H2L=2-(1,3-dioxo-1H-benzo[de]isoquinolin-2(3H)-yl) terephthalic acid)和Zn2+通过水热反应,合成了一例基于双核{Zn2(COO)4}次级构筑单元的二维发光配位聚合物[Zn2(L)2(DMSO)2(DMF)](1)(DMSO=二甲亚砜,DMF=N,N-二甲基甲酰胺)。拓扑分析表明1结构中的双核{Zn2(COO)4}单元可视为4连接节点,并与作为连接子的L2-形成(4,4)-网拓扑构型。1表现出对Fe3+离子的选择性发光猝灭响应,检测限为2.8 μmol·L-1。1对Fe3+的检测具有良好的抗干扰性,且可通过DMF溶剂洗涤实现再生,可多次循环使用。 |
关键词: 发光配位聚合物 π-π堆积作用 晶体结构 Fe3+ 检测 |
基金项目: 国家自然科学基金(No.21871038)资助。 |
Abstract: A two-dimensional luminescent coordination polymer based on dinuclear {Zn2(COO)4} second buildings units,[Zn2(L)2(DMSO)2(DMF)] (1, H2L=2-(1,3-dioxo-1H-benzo[de]isoquinolin-2(3H)-yl) terephthalic acid, DMSO=dimethyl sulfoxide, DMF=dimethylformamide), was synthesized by hydrothermal reaction using H2L ligand and Zn2+. Topological analysis shows that the dinuclear {Zn2(COO)4} unit can be regarded as a 4-linked node and forms a (4,4) net topology with L2- linker. 1 also exhibited a selective luminescence quenching type response to Fe3+ with detection limit as low as 2.8 μmol·L-1. 1 has good anti-interference ability for the detection of Fe3+, and can be regenerated and recycled for several times by washing with DMF solvent. |
Keywords: luminescent coordination polymer π-π stacking interaction crystal structure Fe3+ detection |
投稿时间:2021-04-27 修订日期:2021-06-02 |
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黄佳祥,赵河,刘淑芹,张建军.基于双核{Zn2(COO)4}次级构筑单元的二维发光配位聚合物的晶体结构和对Fe3+的检测[J].无机化学学报,2021,37(8):1513-1518. |
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