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首页> 外文期刊>RSC Advances >Syntheses of four porous 3-D Cd(ii) metal-organic frameworks from a new multidentate ligand 5-(imidazol-1-yl)-N '-(pyridin-4-ylmethylene) nicotinohydrazide and their characterization and adsorption properties
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Syntheses of four porous 3-D Cd(ii) metal-organic frameworks from a new multidentate ligand 5-(imidazol-1-yl)-N '-(pyridin-4-ylmethylene) nicotinohydrazide and their characterization and adsorption properties

机译：来自新的多孔配体5-（Imidazol-1-基）-N' - （吡啶-4-基甲基）烟嗪的四个多孔3-D CD（II）金属 - 有机骨架及其表征及吸附性能

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摘要

Herein, a new multidentate ligand, 5-(imidazol-1-yl)-N '-(pyridin-4-ylmethylene) nicotinohydrazide (L), with an acylhydrazone group was synthesized and characterized. Subsequently, four porous Cd(ii)-MOFs,i.e.[Cd(L)(NO3)](n)(1), [Cd(L)Cl](n)(2), [Cd(L)Br](n)(3), and [Cd(L)I](n)(4), were assembled using the ligandLby a solvothermal method and characterized by single-crystal X-ray diffraction, infrared spectroscopy, thermogravimetric analysis, and powder X-ray diffraction. Structural analysis shows that the coordination environments around Cd(ii) in all the four compounds are different due to the different coordinated anions. Among them, the coordination geometries and the arrangement of five-coordinated groups of the compound1containing the coordinated NO(3)(-)anions are significantly different from those of the other three compounds containing halides. However, all the four MOFs have similar one-dimensional rhombic channels. In these channels, both the nitrate ions and the halide ions are attached to the inner walls of the pores. The CO(2)adsorption properties of1-4were studied at 273 K, and the results showed that these compounds exhibit different adsorption capacities for CO(2)due to the presence of different ions in their pores.
机译：这里，合成并表征了具有酰腙基团的新的多鸟型配体，5-（咪唑-1-基）-N' - （吡啶-4-基甲基）烟酰肼（L）。随后，四个多孔Cd（II）-MOFS，即[Cd（1）（NO 3）]（N）（N）（1），[Cd（1）Cl]（N）（2），[Cd（L）Br]（ N）（3）和[CD（L）I]（N）（4），使用溶剂含量进行组装，并通过单晶X射线衍射，红外光谱，热重分析和粉末X-以单晶X射线衍射，X-为特征。射线衍射。结构分析表明，由于各种协调阴离子，所有四种化合物中的CD（II）周围的协调环境不同。其中，协调几何形状和化合物的五个协调基团的布置与含有卤化物的其他三种化合物的组合物显着不同。然而，所有四个MOF都有类似的一维菱形通道。在这些通道中，硝酸根部和卤离子都连接到孔的内壁上。在273k中研究的1-4次的CO（2）吸附性能，结果表明，这些化合物由于其孔中存在不同离子的存在而表现出CO（2）的不同吸附能力。

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  • 来源
    《RSC Advances》 |2020年第51期|共6页
  • 作者

    Zhu Gui-Ying; Liu Zhenliang; Wang Jia; Niu Xue; Wang Teng; Jin Guo-Xia; Ma Jian-Ping;

  • 作者单位

    Shandong Normal Univ Coll Chem Chem Engn &

    Mat Sci Collaborat Innovat Ctr Functionalized Probes Chem Key Lab Mol &

    Nano Probes Minist Educ Jinan 250014 Peoples R China;

    Shandong First Med Univ &

    Shandong Acad Med Sci Sch Chem &

    Pharmaceut Engn Tai An 271016 Shandong Peoples R China;

    Shandong Normal Univ Coll Chem Chem Engn &

    Mat Sci Collaborat Innovat Ctr Functionalized Probes Chem Key Lab Mol &

    Nano Probes Minist Educ Jinan 250014 Peoples R China;

    Shandong Normal Univ Coll Chem Chem Engn &

    Mat Sci Collaborat Innovat Ctr Functionalized Probes Chem Key Lab Mol &

    Nano Probes Minist Educ Jinan 250014 Peoples R China;

    Shandong Normal Univ Coll Chem Chem Engn &

    Mat Sci Collaborat Innovat Ctr Functionalized Probes Chem Key Lab Mol &

    Nano Probes Minist Educ Jinan 250014 Peoples R China;

    Shandong Normal Univ Coll Chem Chem Engn &

    Mat Sci Collaborat Innovat Ctr Functionalized Probes Chem Key Lab Mol &

    Nano Probes Minist Educ Jinan 250014 Peoples R China;

    Shandong Normal Univ Coll Chem Chem Engn &

    Mat Sci Collaborat Innovat Ctr Functionalized Probes Chem Key Lab Mol &

    Nano Probes Minist Educ Jinan 250014 Peoples R China;

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