首页> 美国卫生研究院文献>Acta Crystallographica Section E: Crystallographic Communications >Synthesis crystal structure and Hirshfeld surface analysis of a 1D coordination polymer catena-polydi­aqua­bis­(nicotinamide-κN1)nickel(II)-μ-fumarato-κ2O1:O4
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Synthesis crystal structure and Hirshfeld surface analysis of a 1D coordination polymer catena-polydi­aqua­bis­(nicotinamide-κN1)nickel(II)-μ-fumarato-κ2O1:O4

机译:一维配位聚合物链状聚二­基双(烟酰胺)-κN的合成晶体结构和Hirshfeld表面分析1)镍(II)-μ-富马拉托-κ2Ø1:O4

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摘要

The reaction of NiCl2 with fumaric acid and nicotinamide in basic solution produces the title polymeric complex, [Ni(C4H2O4)(C6H6N2O)2(H2O)2]n. The NiII cation, located on an inversion centre, is coordinated by two O atoms of the fumarate dianions, two N atoms from nicotinamide ligands and two water mol­ecules in a distorted octa­hedral fashion. In the crystal, the fumarate dianions bridge the NiII cations, forming polymeric chains propagating along the [101] direction; the polymeric chains are further linked by O—H⋯O, N—H⋯O and C—H⋯O hydrogen bonds, forming a three-dimensional supra­molecular architecture. Hirshfeld surface analyses and two-dimensional fingerprint plots were used to analyse the inter­molecular inter­actions present in the crystal, indicating that the most important contributions for the crystal packing are from H⋯O/O⋯H (35.9%), H⋯H (31.7%) and C⋯C (10.4%) inter­actions.
机译:NiCl2与富马酸和烟酰胺在碱性溶液中的反应产生标题的聚合物配合物[Ni(C4H2O4)(C6H6N2O)2(H2O)2] n。 Ni II 阳离子位于反型中心,由富马酸二价阴离子的两个O原子,烟酰胺配体的两个N原子和两个八面体变形的水分子配位。在晶体中,富马酸二价阴离子桥接Ni II 阳离子,形成沿[101]方向传播的聚合物链。聚合物链进一步通过OH,O,NH和CH的氢键连接,形成三维超分子结构。使用Hirshfeld表面分析和二维指纹图分析了晶体中存在的分子间相互作用,表明对晶体堆积最重要的贡献来自H⋯O / O⋯H(35.9%),H⋯H(31.7 %)和C⋯C(10.4%)的相互作用。

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