首页> 美国卫生研究院文献>Acta Crystallographica Section E: Crystallographic Communications >Synthesis and crystal structure of a two-dimensional CoII coordination polymer: poly(μ3-3-carb­oxy­benzoato)μ2-5-(pyridin-4-yl)-1H2′H-33′-bi124-triazolecobalt(II)
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Synthesis and crystal structure of a two-dimensional CoII coordination polymer: poly(μ3-3-carb­oxy­benzoato)μ2-5-(pyridin-4-yl)-1H2′H-33′-bi124-triazolecobalt(II)

机译:二维CoII配位聚合物:聚(μ3-3-羧基苯并)μ2-5-(吡啶-4-基)-1H2′H-33′-bi 1 24-三唑钴(II)

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摘要

In the title compound, [Co(C8H5O4)(C9H6N7)]n, the divalent CoII atom is six-coordinated to three N atoms from two symmetrical 5-(pyridin-4-yl)-1H,2′H-3,3′-bi[1,2,4-triazole] (H2pyttz) ligands and three O atoms from three symmetrical 3-carb­oxy­benzoate (Hbdic) ligands, leading to a distorted {CoN3O3} octa­hedral coordination environment. Two CoII cations are linked by four bridging carboxyl­ate groups to generate a dinuclear [Co2(CO2)4] unit. The dinuclear units are further connected into a chain along [010] via the Hbdic ligands. The other infinite chain, along [100], is formed through the H2pyttz ligands. Finally, the two kinds of chains are cross-linked, by sharing the CoII cations, into a two-dimensional network. In the crystal, adjacent layers are further linked by O—H⋯N hydrogen bonds into a three-dimensional framework.
机译:在标题化合物[Co(C8H5O4)(C9H6N7)] n中,二价Co II 原子与两个对称的5-(吡啶-4-基)-1H中的三个N原子配位,2'H-3,3'-联[1,2,4-三唑](H2pyttz)配体和来自三个对称的3-羧基苯甲酸酯(Hbdic)配体的三个O原子,导致扭曲的{CoN3O3}八面体配位环境。两个Co II 阳离子通过四个桥接羧酸根基团连接,生成双核[Co2(CO2)4]单元。双核单元进一步通过Hbdic配体沿着[010]连接成链。沿着[100]的另一条无限链是通过H2pyttz配体形成的。最后,通过共享Co II 阳离子将两种链交联成二维网络。在晶体中,相邻的层通过OHN氢键进一步连接成三维骨架。

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