Kargar Hadi, Jamshidvand Arezoo, Fun Hoong-Kun, Kia Reza
Acta Crystallogr Sect E Struct Rep Online. 2009 Mar 14;65(Pt 4):m403-4. doi: 10.1107/S1600536809008721.
In the title complex, [Ni(C(23)H(28)N(2)O(4))]·H(2)O, the Ni(II) ion is coordinated by the N(2)O(2) unit of the tetra-dentate Schiff base ligand in a slightly distorted planar geometry. The asymmetric unit of the title compound comprises one complex mol-ecule and a water mol-ecule of crystallization. The H atoms of the water mol-ecule make bifurcated inter-molecular hydrogen bonds with the O atoms of the phenolate and eth-oxy groups with R(1) (2)(5) and R(1) (2)(6) ring motifs, which may, in part, influence the mol-ecular configuration. The dihedral angle between the two benzene rings is 31.43 (5)°. The crystal structure is further stabilized by inter-molecular C-H⋯O and C-H⋯π inter-actions, which link neighbouring mol-ecules into one-dimensional extended chains along the a axis. An inter-esting feature of the crystal structure is the short inter-molecular C⋯C [3.3044 (14) Å] contact which is shorter than the sum of the van der Waals radii.
在标题配合物[Ni(C₂₃H₂₈N₂O₄)]·H₂O中，Ni(II)离子由四齿席夫碱配体的N₂O₂单元以略微扭曲的平面几何构型配位。标题化合物的不对称单元包含一个配合物分子和一个结晶水分子。水分子的H原子与酚盐和乙氧基的O原子形成具有R(1) (2)(5)和R(1) (2)(6)环模式的分叉分子间氢键，这可能部分影响分子构型。两个苯环之间的二面角为31.43 (5)°。晶体结构通过分子间C—H⋯O和C—H⋯π相互作用进一步稳定，这些相互作用将相邻分子沿a轴连接成一维延伸链。晶体结构的一个有趣特征是分子间C⋯C [3.3044 (14) Å]接触短于范德华半径之和。
