2,7-双(4-吡啶基)-9,9-二甲基芴的锌配位聚合物合成及其对2,4,6-三硝基苯酚的荧光传感研究  

A Fluorescent Zinc-Based Coordination Polymer Constructed by 4,4′-(9,9-dimethyl-9 H-fluorene-2,7-diyl)dipyridine with Sensitive Sensing Property for 2,4,6-Trinitrophenol

作　　者：王高峰[1] 孙述文[1] 杨海英[1] 王叶 WANG Gaofeng;SUN Shuwen;YANG Haiying;WANG Ye(Department of Applied Chemistry,Yuncheng University,Yuncheng 044000)

机构地区：[1]运城学院应用化学系,山西运城044000

出　　处：《分析科学学报》2024年第6期648-654,共7页Journal of Analytical Science

基　　金：山西省基础研究计划(自由探索类)面上项目(No.20210302123086);运城学院应用研究项目(CY-2021010)。

摘　　要：在溶热条件下,利用锌离子、2,7-双(4-吡啶基)-9,9-二甲基芴和5-叔丁基间苯二甲酸,合成了一种锌配位聚合物{[Zn(tbip)(mfdp)]·2H_(2)O}_(n)(CP-1)(mfdp=2,7-双(4-吡啶基)-9,9-二甲基芴,H_(2)tbip=5-叔丁基间苯二甲酸)。X-射线单晶衍射测试结果表明,CP-1属于三斜晶系P1空间群,其晶胞参数为a=1.01384(5)nm,b=1.16486(6)nm,c=1.66569(7)nm,α=85.768(4)°,β=85.353(4)°,γ=73.544(4)°,V=1.87771(16)nm^(3),R_(1)=0.0523,wR_(2)=0.1634(I>2σ(I));CP-1是具有晶格水占据孔洞的二维网络结构。实验显示,CP-1在N,N-二甲基甲酰胺(DMF)溶液中呈现出强烈的荧光,利用这一现象建立了检测2,4,6-三硝基苯酚的新方法,在最佳实验条件下,K_(SV)和检出限分别为6.27×10^(4) L·mol^(-1)和0.108μmol·L^(-1)。By introducing fluorene fragment on the dipyridine ligand,a zinc coordination polymer,{[Zn(tbip)(mfdp)]·2H_(2)O}_(n)(CP-1)(mfdp=4,4′-(9,9-dimethyl-9 H-fluorene-2,7-diyl)dipyridine,H_(2) tbi=5-tert-butylisophthalic acid)has been synthesized under solvothermal conditions.X-ray diffraction studies showed that CP-1 crystallized in the triclinic space group P 1 with a=1.01384(5)nm,b=1.16486(6)nm,c=1.66569(7)nm,α=85.768(4)°,β=85.353(4)°,γ=73.544(4)°,V=1.87771(16)nm 3,R_(1)=0.0523 and wR_(2)=0.1634(I>2σ(I)).The structure of CP-1 shows a two dimensional network with holes occupied by lattice water molecules.Notably,CP-1 demonstrated strong luminescence in DMF solution,and fluorescence studies show that CP-1 could detect 2,4,6-trinitrophenol with high sensitivity by luminescent sensing.The K SV and detection limit values for TNP were calculated to be 6.27×10^(4) L·mol^(-1) and 0.108μmol·L^(-1),respectively.

关 键 词：芴 配位聚合物 锌(Ⅱ) 荧光传感 芳香硝基化合物 

分 类 号：O657.39[理学—分析化学]