title: Poly[bis-(μ(4)-acetato-κO:O:O':O')bis-(μ(3)-acetato-κO:O:O)(μ(2)-acetato-κO:O')(μ(2)-acetic acid-κO:O')di-μ-aqua-copper(II)tris-odium].
abstract: In the title compound, [CuNa(3)(CH(3)CO(2))(5)(CH(3)COOH)(H(2)O)(2)](n), the Cu(II) atom lies on an inversion center and is coordinated by four O atoms from four acetate ligands, leading to a square-planar geometry. One Na(I) atom, lying on an inversion center, is coordinated by four O atoms from four acetate ligands and two bridging water mol-ecules in a distorted octa-hedral geometry. The other Na(I) atom is coordinated by five O atoms from five acetate ligands and a bridging water mol-ecule. A hy-droxy H atom lies on a twofold rotation axis and is shared by two acetate ligands. The crystal packing exhibits a polymeric layer parallel to (100), which is further stablized by intra-layer O-H⋯O hydrogen bonds. The layers are linked by inter-layer O-H⋯O hydrogen bonds.
authors.affiliation: Alan G. MacDiarmid Institute, Jilin University, Changchun 130012, People's Republic of China.
authors.forename: Xiang-Yu
authors.initials: XY
authors.lastname: Jiang
authors.forename: Xi-Gui
authors.initials: XG
authors.lastname: Yue