二水合双（N,N - 二乙基 - 烟酰胺 - κN）双（4 - 甲酰基苯甲酸根 - κO）镍（II）
Diaqua-bis(N,N-diethyl-nicotinamide-κN)bis-(4-formyl-benzoato-κO)nickel(II).
作者信息
Sertçelik Mustafa, Tercan Barış, Sahin Ertan, Necefoğlu Hacali, Hökelek Tuncer
出版信息
Acta Crystallogr Sect E Struct Rep Online. 2009 Feb 25;65(Pt 3):m326-7. doi: 10.1107/S1600536809006345.
In the title centrosymmetric mononuclear Ni(II) compound, [Ni(C(8)H(5)O(3))(2)(C(10)H(14)N(2)O)(2)(H(2)O)(2)], the central Ni(II) atom is coordinated by two O atoms from two 4-formyl-benzoate (FOB) ligands, two O atoms from two water mol-ecules and two N atoms from two diethyl-nicotinamide (DENA) ligands. The coordination geometry is slightly distorted octa-hedral, with four O atoms in the equatorial plane and two N atoms in axial positions. Intra-molecular O-H⋯O hydrogen bonds are observed. In the crystal structure, mol-ecules are linked into chains along the a axis by inter-molecular O-H⋯O hydrogen bonds. The structure is further stabilized by π-π inter-actions between the pyridine rings of DENA units, with a centroid-centroid distance of 3.668 (2) Å.
在标题化合物中心对称单核镍（II）化合物[Ni(C₈H₅O₃)₂(C₁₀H₁₄N₂O)₂(H₂O)₂]中，中心镍（II）原子由来自两个4-甲酰基苯甲酸酯（FOB）配体的两个O原子、来自两个水分子的两个O原子以及来自两个二乙基烟酰胺（DENA）配体的两个N原子配位。配位几何形状为稍有畸变的八面体，四个O原子位于赤道平面，两个N原子位于轴向位置。观察到分子内O—H⋯O氢键。在晶体结构中，分子通过分子间O—H⋯O氢键沿a轴连接成链。该结构通过DENA单元吡啶环之间的π-π相互作用进一步稳定，质心间距为3.668（2）Å。
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