title: A novel copper(II) coordination polymer with 2,2'-bipyridyl-3,3'-dicarboxylic acid.
abstract: 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.
authors.affiliation: Department of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China. zhaobz@nenu.edu.cn
authors.forename: Bao-Zhong
authors.initials: BZ
authors.lastname: Zhao
authors.forename: Xiang-Rong
authors.initials: XR
authors.lastname: Hao
authors.forename: Zhan-Gang
authors.initials: ZG
authors.lastname: Han
authors.forename: Qiang
authors.initials: Q
authors.lastname: Fu
authors.forename: Ya-Guang
authors.initials: YG
authors.lastname: Chen