title: Poly[[di-mu3-acetato-di-mu2-aqua-diaqua-di-mu3-hydroxo-tricopper(II)] naphthalene-1,5-disulfonate].
abstract: The crystal structure of the title complex, {[Cu3(C2H3O2)2(OH)2(H2O)4](C10H6O6S2)}n, is built of infinite polymeric cationic {[Cu3(C2H3O2)2(H2O)4(OH)2]2+}n chains stretching along the a axis, with naphthalene-1,5-disulfonate (1,5-nds) anions in between. One independent Cu(II) cation and the 1,5-nds anion occupy special positions on crystallographic inversion centres. Each Cu(II) cation has an octahedral coordination environment formed by two carboxyl O atoms, two hydroxo O atoms and two water molecules. The carboxylate and hydroxo groups perform a bridging function, linking adjacent Cu atoms in the chain, with a shortest Cu...Cu distance of 2.990 (3) A. The chains are further linked into a three-dimensional supramolecular framework via hydrogen-bonding interactions involving the sulfonate groups of the 1,5-nds dianions.
authors.affiliation: Laboratory of Functional Materials, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, People's Republic of China.
authors.forename: Li Li
authors.initials: LL
authors.lastname: Kong
authors.forename: Shan
authors.initials: S
authors.lastname: Gao
authors.forename: Li Hua
authors.initials: LH
authors.lastname: Huo
authors.forename: Hui
authors.initials: H
authors.lastname: Zhao