Zhou Xiao-Fei, Xiao Hong-Ping, Zhao Ya-Juan, Li Xin-Hua
College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2013 Apr 20;69(Pt 5):m273-4. doi: 10.1107/S1600536813010246. Print 2013 May 1.
The asymmetric unit of the polymeric title compound, {[Cu2(C10H2O8)(C3H4N2)4(H2O)2]·C3H7NO} n , contains two independent Cu(II) ions, each coordinated by one water mol-ecule, two imidazole N atoms and two carboxyl-ate O atoms from benzene-1,2,4,5-tetra-carboxyl-ate anions in a distorted square-pyramidal geometry. The benzene-1,2,4,5-tetra-carboxyl-ate anion bridges four Cu(II) ions, forming a polymeric sheet parallel to (010). In the crystal, extensive N-H⋯O and O-H⋯O hydrogen bonds link the polymeric sheets and di-methyl-formamide solvent mol-ecules into a three-dimensional supra-molecular structure.
聚合标题化合物{[Cu₂(C₁₀H₂O₈)(C₃H₄N₂)₄(H₂O)₂]·C₃H₇NO}ₙ的不对称单元包含两个独立的Cu(II)离子,每个离子由一个水分子、两个咪唑N原子和来自苯-1,2,4,5-四羧酸根阴离子的两个羧酸根O原子以扭曲的四方锥几何构型配位。苯-1,2,4,5-四羧酸根阴离子桥连四个Cu(II)离子,形成平行于(010)的聚合物片层。在晶体中,广泛的N-H⋯O和O-H⋯O氢键将聚合物片层和二甲基甲酰胺溶剂分子连接成三维超分子结构。