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首页> 外文期刊>Acta Crystallographica Section E: Crystallographic Communications >Crystal structure and Hirshfeld surface analysis of tetra­aqua­bis­(isonicotinamide-κN1)nickel(II) fumarate
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Crystal structure and Hirshfeld surface analysis of tetra­aqua­bis­(isonicotinamide-κN1)nickel(II) fumarate

机译:富马酸四quabis(isonicotinamide-κN1)镍(II)的晶体结构和Hirshfeld表面分析

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The reaction of NiCl2 with fumaric acid and isonicotinamide in a basic solution produces the title complex, [Ni(C6H6N2O)2(H2O)4](C4H2O4). The nickel(II) ion of the complex cation and the fumarate anion are each located on an inversion centre. The NiII ion is coordinated octa­hedrally by four water O atoms and two N atoms of isonicotinamide mol­ecules. The fumarate anion is linked to neighbouring complex cations via Owater—H⋯Ofumarate hydrogen bonds. In the crystal, the complex cations are further linked by O—H⋯O, N—H⋯O and C—H⋯O hydrogen bonds, forming a three-dimensional supra­molecular architecture. Hirshfeld surface analysis and two-dimensional fingerprint plots were used to analyse the inter­molecular inter­actions present in the crystal and indicate that the most important contributions for the crystal packing are from H⋯O/O⋯H (41.8%), H⋯H (35.3%) and H⋯C/C⋯H (10.2%) inter­actions.
机译:NiCl2与富马酸和异烟酰胺在碱性溶液中的反应产生标题复合物[Ni(C6H6N2O)2(H2O)4](C4H2O4)。络合阳离子的镍(II)离子和富马酸根阴离子分别位于一个反转中心。 NiII离子由四个异烟酰胺分子的水O原子和两个N原子八面体配位。富马酸酯阴离子通过Owater-H⋯O-富马酸酯氢键与相邻的复合阳离子连接。在晶体中,络合阳离子通过OH-O,NH-O和CHOH氢键进一步连接,形成三维超分子结构。使用Hirshfeld表面分析和二维指纹图分析晶体中存在的分子间相互作用,并指出对晶体堆积最重要的贡献来自H⋯O / O⋯H(41.8%),H⋯H(35.3) %)和H⋯C / C⋯H(10.2%)的相互作用。

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