首页> 外文期刊>RSC Advances >Five Co(II) coordination polymers with different counter anions based on [3,5-di(4H-1,2,4-triazol-4-yl) benzoato](-) ligand: directed synthesis, structures and magnetic properties
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Five Co(II) coordination polymers with different counter anions based on [3,5-di(4H-1,2,4-triazol-4-yl) benzoato](-) ligand: directed synthesis, structures and magnetic properties

机译:基于[3,5-DI(4H-1,2,4-三唑-4-基)苯佐酚]( - )配体的五种CO(II)配位聚合物,其基于[3,5-DI(4H-1,2,4-三唑-4-基)]( - )配体:定向合成,结构和磁性

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摘要

As a continuing challenge to obtain the desired coordination polymers in the synthesis stage, the counter ions, the metal-ligand ratio and the involvement of template have great impact on their structure construction and crystal growth. In this paper, three different crystals of coordination polymers 1-3 {{[CoL(mu(2)-OH)]}(n) (1), {[CoL2(H2O)]center dot H2O}(n) (2), {[Co3L3(H2O)]center dot 3NO(3)center dot 4H(2)O}(n) (3)} {L = [3,5-di(4H-1,2,4-triazol- 4-yl) benzoate](-)} were obtained in one pot with HL and Co(NO3)(2). By tuning the reactants ratio and employing different templates, each complex could also be synthesized separately. Single-crystal Xray analyses show that complex 1 exhibited a two-dimensional (2D) layered gek2 net structure. Complex 2 with deprotonated [L](-) has two dimensional (2D) nets structure with 3,5L66 topology. Complex 3 displays a new 5,5,6,6-connected three-dimensional (3D) topological network with a point symbol of (4(10).6(5))(4(5).6(5)) 2(4(7).6(3)) 2(4(8).6(7)). When the reactant Co(NO3)(2) was changed to CoCl2 or CoSO4, 4 and 5 {{[CoL(Cl)]center dot H2O}(n) (4) and {[Co2L2(SO4)(H2O)]center dot 2H(2)O}(n) (5)} was formed with a similar structure to that of 1. Complexes 4 and 5 are two-dimensional (2D) frameworks with 4,6L26 topology. Five complexes have been characterized by elemental analysis, infrared spectroscopy, powder X-ray diffraction and thermogravimetry measurements. The magnetic properties of 1-5 are also investigated. The magnetic property investigation reveals that complex 1 exhibits frequency-dependent behavior.
机译:作为在合成阶段中获得所需的配位聚合物的持续挑战,抗衡离子,金属 - 配体比和模板的累积对其结构构建和晶体生长产生了很大的影响。本文中,三种不同的配位聚合物晶体1-3 {{[CAN(2)-OH)]}(n)(1),{[COL2(H2O)]中心点H2O}(n)(2 ),{[CO3L3(H2O)]中心点3no(3)中心点4h(2)O}(n)(3)} {l = [3,5-di(4h-1,2,4-tri zol- 4-基)苯甲酸酯]( - )}在一个带HL和CO(NO3)(2)的一个罐中。通过调整反应物比并采用不同的模板,每个复合物也可以单独合成。单晶X射线分析表明,复杂的1展示了二维(2D)分层的GEK2净结构。络合物2具有脱质子化[L]( - )具有具有3,5L66拓扑的二维(2D)网结构。复杂3显示新的5,5,6,6连接的三维(3D)拓扑网络,其点符号(4(10).6(5))(4(5).6(5))2 (4(7).6(3))2(4(8).6(7))。当反应物CO(2)改变为COCl2或COCO4,4和5 {{[COL)]中心点H2O}(N)(4)和{[CO2L2(SO 4)(H2O)]中心用类似结构形成的点2H(2)O}(n)(5)}与1.复合物4和5是具有4,6L26拓扑的二维(2D)框架。通过元素分析,红外光谱,粉末X射线衍射和热重度测量,已经表征了五种复合物。还研究了1-5的磁性。磁性研究表明,复杂的1表现出依赖函数的行为。

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  • 来源
    《RSC Advances》 |2017年第72期|共11页
  • 作者单位

    Heilongjiang Univ Sch Chem &

    Mat Sci Harbin 150080 Heilongjiang Peoples R China;

    Heilongjiang Univ Sch Chem &

    Mat Sci Harbin 150080 Heilongjiang Peoples R China;

    Heilongjiang Univ Agr Coll Harbin 150080 Heilongjiang Peoples R China;

    Heilongjiang Univ Sch Chem &

    Mat Sci Harbin 150080 Heilongjiang Peoples R China;

    Heilongjiang Univ Sch Chem &

    Mat Sci Harbin 150080 Heilongjiang Peoples R China;

    Heilongjiang Univ Sch Chem &

    Mat Sci Harbin 150080 Heilongjiang Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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