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Syntheses, structures, topologies, and luminescence properties of four coordination polymers based on bifunctional 6-(4-pyridyl)-terephthalic acid and bis(imidazole) bridging linkers

机译:基于双官能6-(4-吡啶基) - 对苯二甲酸和双(咪唑)桥接接头的四个配位聚合物的合成,结构,拓扑和发光性能

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摘要

Four mixed-ligand coordination networks, namely, {[Cu(pta)(1,4-bimb)(0.5)(H2O)(0.5)]center dot H2O}(n) (1), {[Co(pta) (4,4'-bimbp) (H2O)]center dot H2O}(n) (2),{[Cd(pta)(1,4-bidb)(0.5)]center dot 2H(2)O}(n) (3), and {[Zn(pta)(1,3-bimb)(0.5)]center dot 1.5H(2)O}(n) (4), were obtained under the solvothermal reactions in the presence of bis(imidazole) linkers (H(2)pta = 6-(4-pyridyl)-terephthalic acid, 1,4-bidb = 1,4-bis(imidazol-1-yl)-2,5-dimethyl benzene, 1,3-bimb = 1,3-bis(imidazol-1-ylmethyl)benzene, 1,4-bimb = 1,4-bis(imidazol-1-ylmethyl)benzene, and 4,4'-bimbp = 4,4'-bis(imidazol-1-ylmethyl)biphenyl). Their structures were determined by single-crystal X-ray diffraction analyses and further characterized by elemental analyses, IR spectra, powder X- ray diffraction (PXRD), and thermogravimetric (TG) analyses. Complex 1 displays a novel (3,4,4)-connected topology with the Schlafli symbol of (4.8(2))(2)(4(2).8(2).10(2))(8.10(4).12). Complex 2 features a 2D (3,5)-connected (4(2).6(7).8)(4(2).6)-3,5L2 sheet. Complexes 3 and 4 both exhibit a 3-fold 3D -> 3D parallel entangled (3,4)-connected net with the Schlafli symbols of (4.6.8)(4.6(2).6(3))-fsc-3,4-C2/c and (4.6.8)(4.6(2).8(3))-3,4T1 for 3 and 4, respectively. Moreover, the solid state luminescence and the luminescent lifetime of 3 and 4 have been investigated.
机译:四个混合配体配位网络,即{[Cu(PTA)(1,4-BIMB)(0.5)(0.5)(0.5)]中心点H2O}(N)(1),{[CO(PTA)( 4,4'-BIMBP)(H2O)]中心点H2O}(n)(2),{[CD(PTA)(1,4-BIDB)(0.5)]中心点2H(2)O}(n) (3),{[Zn(PTA)(1,3-BIMB)(0.5)]中心点1.5H(2)o}(n)(4),在BIS存在下的溶剂热反应下获得(咪唑)接头(H(2)PTA = 6-(4-吡啶基) - 苯二甲酸,1,4-BIDB = 1,4-双(咪唑-1-基)-2,5-二甲基苯,1,3 -bimb = 1,3-双(Imidazol-1-基甲基)苯,1,4-bimb = 1,4-双(咪唑-1-基甲基)苯,4,4'-bimbp = 4,4'-双(咪唑-1-基甲基)联苯)。它们的结构由单晶X射线衍射分析确定,并进一步通过元素分析,IR光谱,粉末X射线衍射(PXRD)和热重分析(TG)分析。复杂1显示了一种新的(3,4,4)连接的拓扑,Schlafli符号(4.8(2))(2)(4(2).8(2).10(2))(8.10(4) .12)。复杂2具有2D(3,5) - 连接(4(2).6(7).8)(4(2).6)-3,5L2张。复合物3和4都展示了3倍3D - > 3D并联纠缠(3,4)连接网,Schlafli符号(4.6.8)(4.6(2).6(3)) - FSC-3, 4-C2 / C和(4.6.8)(4.6(2).8(3)) - 3,4t1分别为3和4。此外,已经研究了固态发光和3和4的发光寿命。

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  • 来源
    《RSC Advances》 |2015年第19期|共9页
  • 作者单位

    Shandong Univ State Key Lab Crystal Mat Jinan 250100 Peoples R China;

    Shandong Univ State Key Lab Crystal Mat Jinan 250100 Peoples R China;

    Qilu Normal Univ Coll Chem &

    Chem Engn Adv Mat Inst Res Jinan 250013 Peoples R China;

    Qilu Normal Univ Coll Chem &

    Chem Engn Adv Mat Inst Res Jinan 250013 Peoples R China;

    Shandong Univ State Key Lab Crystal Mat Jinan 250100 Peoples R China;

    Shandong Univ State Key Lab Crystal Mat Jinan 250100 Peoples R China;

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