title: The two-dimensional coordination polymer poly[diaqua(μ2-1H-imidazo[4,5-f][1,10]phenanthroline)-μ4-sulfato-μ3-sulfato-dicadmium(II)].
abstract: In the title coordination polymer, [Cd2(SO4)2(C13H8N4)(H2O)2]n, there are two crystallographically independent Cd(II) centres with different coordination geometries. The first Cd(II) centre is hexacoordinated by four O atoms of four sulfate ligands, one water O atom and one N atom of a 1H-imidazo[4,5-f][1,10]phenanthroline (IP) ligand, giving a distorted octahedral coordination environment. The second Cd(II) centre is heptacoordinated by four O atoms of three sulfate ligands, one water O atom and two N atoms of one chelating IP ligand, resulting in a distorted monocapped anti-trigonal prismatic geometry. The symmetry-independent Cd(II) ions are bridged in an alternating fashion by sulfate ligands, forming one-dimensional ladder-like chains which are connected through the IP ligands to form two-dimensional layers. These two-dimensional layers are linked by interlayer hydrogen bonds, leading to the formation of a three-dimensional supramolecular network.
authors.affiliation: Department of Applied Chemistry, Guangdong Ocean University, Zhanjiang 524088, People's Republic of China.
authors.forename: Xiao Min
authors.initials: XM
authors.lastname: Hao
authors.affiliation: Department of Chemistry, Harbin Institute of Technology, Harbin 150001, People's Republic of China.
authors.forename: Gang
authors.initials: G
authors.lastname: Chen
authors.affiliation: Department of Applied Chemistry, Guangdong Ocean University, Zhanjiang 524088, People's Republic of China.
authors.forename: Chang Sheng
authors.initials: CS
authors.lastname: Gu
authors.affiliation: College of Chemistry and Chemical Technology, Daqing Petroleum Institute, Daqing 163318, People's Republic of China.
authors.forename: Ji Wei
authors.initials: JW
authors.lastname: Liu
keywords: 1H-imidazo[4,5-f][1,10]phenanthroline; cadmium(II) complex; crystal engineering; crystal structure; hydrogen bonding; sulfate ions; two-dimensional coordination polymer