title: catena-Poly[[[aqua-(2,2'-bipyridine-κ(2)N,N')copper(II)]-μ-furan-2,5-di-carboxyl-ato-κ(2)O(2):O(5)] dihydrate].
abstract: In the crystal structure of the title compound, {[Cu(C(6)H(2)O(5))(C(10)H(8)N(2))(H(2)O)]·2H(2)O}(n), an infinite chain parallel to [110] is formed by the linking of Cu(H(2)O)(2,2'-bipyridine) units through a furan-2,5-dicarboxyl-ate bridge. The Cu(II) atom shows a square-pyramidal geometry, with one furan-2,5-dicarboxyl-ate O atom in the apical position. The dihedral angle between the planes of the furan ring and the bipyridine mol-ecule is 83.88 (7)°. O(water)-H⋯O hydrogen bonds connect adjacent chains, generating a layer motif parallel to (001).
authors.affiliation: School of Chemical Engineering, Changchun University of Technology, Changchun 130012,  People's Republic of China.
authors.forename: Ya-Feng
authors.initials: YF
authors.lastname: Li
authors.forename: Yue
authors.initials: Y
authors.lastname: Xu
authors.forename: Xiao-Lin
authors.initials: XL
authors.lastname: Qin
authors.forename: Yong-Peng
authors.initials: YP
authors.lastname: Yuan
authors.forename: Wen-Yuan
authors.initials: WY
authors.lastname: Gao