Zhao Bao-Zhong, Hao Xiang-Rong, Han Zhan-Gang, Fu Qiang, Chen Ya-Guang
Department of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China.
Acta Crystallogr C. 2005 Jan;61(Pt 1):m48-50. doi: 10.1107/S0108270104028720. Epub 2004 Dec 18.
A novel copper(II) coordination polymer, poly[[[aquacopper(II)]-mu3-2,2'-bipyridyl-3,3'-dicarboxylato-kappa4N,N':O:O'] dihydrate], {[Cu(C12H6N2O4)(H2O)].2H2O}n, was obtained by the reaction of CuCl2.2H2O and 2,2'-bipyridyl-3,3'-dicarboxylic acid (H2L) in water. In the molecule, each Cu(II) atom is five-coordinated and lies at the centre of a square-pyramidal basal plane, bridged by three L ligands to form a two-dimensional (4,4)-network. Each L moiety acts as a bridging tetradentate ligand, coordinating to three Cu(II) atoms through its two aromatic N atoms and two O atoms of the two carboxyl groups. The two-dimensional square-grid sheets superimpose in an off-set fashion through the inorganic water layer.
通过使二水合氯化铜（CuCl₂·2H₂O）与2,2'-联吡啶-3,3'-二羧酸（H₂L）在水中反应，得到了一种新型铜（II）配位聚合物，聚[[[水合铜（II）]-μ₃-2,2'-联吡啶-3,3'-二羧酸根-κ⁴N,N':O:O']二水合物]，{[Cu(C₁₂H₆N₂O₄)(H₂O)]·2H₂O}ₙ。在该分子中，每个铜（II）原子为五配位，位于一个四方锥基面的中心，由三个L配体桥联形成二维（4,4）网络。每个L部分作为一个桥连四齿配体，通过其两个芳香族N原子和两个羧基的O原子与三个铜（II）原子配位。二维方格片层通过无机水层以错位方式叠加。
