Nie Jing-Jing, Li Jun-Hua, Xu Duan-Jun
Department of Chemistry, Zhejiang University, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2009 Jun 27;65(Pt 7):m822-3. doi: 10.1107/S1600536809023794.
The asymmetric unit of the title compound, [Co(C(3)H(4)N(2))(6)]Co(C(3)H(4)N(2))(3)(H(2)O)(3)(2), contains two halves of crystallographically independent Co(II) complex cations, each assuming a distorted octa-hedral geometry, and one uncoordinated naphthalene-1,4-dicarboxyl-ate dianion. One Co(II) cation is located on an inversion center and is coordinated by six imidazole mol-ecules, while the other Co(II) cation is located on a twofold rotation axis and is coordinated by three water and three imidazole mol-ecules. The uncoordinated naphthalene-1,4-dicarboxyl-ate dianion links both Co(II) complex cations via O-H⋯O and N-H⋯O hydrogen bonding. One imidazole ligand is equally disordered over two sites about a twofold rotation axis, while the coordinated N atom of the imidazole is located on the twofold rotation axis. One water O atom has site symmetry 2.
标题化合物[Co(C₃H₄N₂)₆]Co(C₃H₄N₂)₃(H₂O)₃₂的不对称单元包含两个晶体学独立的Co(II)络合阳离子的一半，每个阳离子都呈扭曲的八面体几何构型，以及一个未配位的萘-1,4-二羧酸二阴离子。一个Co(II)阳离子位于对称中心，由六个咪唑分子配位，而另一个Co(II)阳离子位于二重旋转轴上，由三个水分子和三个咪唑分子配位。未配位的萘-1,4-二羧酸二阴离子通过O—H⋯O和N—H⋯O氢键连接两个Co(II)络合阳离子。一个咪唑配体在围绕二重旋转轴的两个位置上同样无序，而咪唑的配位N原子位于二重旋转轴上。一个水分子的O原子具有位点对称性2。
