丁烷 -1,4 -二铵双（吡啶 -2,6 -二羧酸根 -κO,N,O）镉（II）二水合物
Butane-1,4-diammonium bis-(pyridine-2,6-dicarboxyl-ato-κO,N,O)cadmate(II) dihydrate.
作者信息
Tabatabaee Masoumeh, Aghabozorg Hossein, Nasrolahzadeh Roghaieh, Roshan Leila, Firoozi Najmeh
出版信息
Acta Crystallogr Sect E Struct Rep Online. 2008 Sep 20;64(Pt 10):m1290. doi: 10.1107/S1600536808029395.
In the title compound, (C(4)H(14)N(2))[Cd(C(7)H(3)NO(4))(2)]·2H(2)O, the Cd(II) ion is coordinated by four O atoms [Cd-O = 2.2399 (17)-2.2493 (17) Å] and two N atoms [Cd-N = 2.3113 (15) and 2.3917 (15) Å] from two tridentate pyridine-2,6-dicarboxyl-ato ligands in a distorted octa-hedral geometry. The uncoordinated water mol-ecules are involved in O-H⋯O and N-H⋯O hydrogen bonds, which contribute to the formation of a three-dimensional supra-molecular structure, along with π-π stacking inter-actions [centroid-centroid distances of 3.5313 (13) and 3.6028 (11) Å between the pyridine rings of neighbouring dianions].
在标题化合物（C₄H₁₄N₂）[Cd（C₇H₃NO₄）₂]·2H₂O中，Cd（II）离子由来自两个三齿吡啶 - 2,6 - 二羧酸根配体的四个O原子[Cd - O = 2.2399（17） - 2.2493（17）Å]和两个N原子[Cd - N = 2.3113（15）和2.3917（15）Å]配位，形成扭曲的八面体几何构型。未配位的水分子参与O - H⋯O和N - H⋯O氢键作用，这与π - π堆积相互作用[相邻二价阴离子的吡啶环之间的质心 - 质心距离为3.5313（13）和3.6028（11）Å]共同促成三维超分子结构的形成。
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