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首页> 外文期刊>Acta Crystallographica Section E: Crystallographic Communications >Crystal structure of bis-(μ-N-hy-droxy-picolin-amid-ato)bis-[bis-(N-hy-droxy-picolinamide)-sodium]
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Crystal structure of bis-(μ-N-hy-droxy-picolin-amid-ato)bis-[bis-(N-hy-droxy-picolinamide)-sodium]

机译:双-(μ-N-羟基-吡啶啉-酰胺-氨基)双-[双-(N-羟基-吡啶基吡啶)-钠]的晶体结构

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The title compound, [Na2(C6H5N2O2)2(C6H6N2O2)4], is a centrosymmetric coordination dimer based on the sodium(I) salt of N-hy-droxy-picolinamide. The mol-ecule has an {Na2O6(μ-O)2} core with two bridging carbonyl O atoms and two hydroxamate O atoms of two mono-deprotonated residues of N-hy-droxy-picolinamide, while two neutral N-hy-droxy-picolinamide mol-ecules are coordinated in a monodentate manner to each sodium ion via the carbonyl O atoms [the Na—O distances range from 2.3044?(2) to 2.3716?(2)??]. The penta-coordinated sodium ion exhibits a distorted trigonal–pyramidal coordination polyhedron. In the crystal, the coordination dimers are linked into chains along the c axis via N—H?O and N—H?N hydrogen bonds; the chains are linked into a two-dimensional framework parallel to (100) via weak C—H?O and π–π stacking inter-actions.
机译:标题化合物[Na 2(C 6 H 5 N 2 O 2)2(C 6 H 6 N 2 O 2)4]是基于N-羟基-吡啶并吡啶啉钠(I)盐的中心对称配位二聚体。该分子具有一个{Na2O6(μ-O)2}核,具有两个桥接的羰基O原子和两个N-羟基-吡啶基吡啶酰胺的单去质子化残基的两个异羟肟酸O原子,而两个中性的N-羟基-羟基-吡啶甲酸酰胺分子通过羰基O原子与每个钠离子配位[Na-O距离范围为2.3044?(2)至2.3716?(2)?]。五配位的钠离子表现出扭曲的三角-锥体配位多面体。在晶体中,配位二聚体通过NH-OH和NH-N氢键沿c轴连接成链。这些链通过弱CH?O和π–π堆积相互作用链接到与(100)平行的二维框架中。

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