title: catena-Poly[[[aqua-bis-(1H-imidazole-κN(3))copper(II)]-μ-furan-2,5-di-car-boxylato-κ(2)O(2):O(5)] trihydrate].
abstract: In the title cooridnation polymer, {[Cu(C(6)H(2)O(5))(C(3)H(4)N(2))(2)(H(2)O)]·3H(2)O}(n), an infinite chain is formed along [001] by linking of the Cu(C(3)N(2)H(4))(2)(H(2)O) entities with two bridging monodentate carboxyl-ate groups of two different furan-2,5-dicarboxyl-ate dianions. The geometry of the Cu(2+) ion is a square-based pyramid with the water atom in the apical position and the ligand O and N atoms in a trans orientation. The dihedral angle between the imidazole planes is 83.96 (14)°. O(w)-H⋯O and N(i)-H⋯O (w = water and i = imidazole) hydrogen bonds help to establish the packing.
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: Wen-Yuan
authors.initials: WY
authors.lastname: Gao
authors.forename: Yue
authors.initials: Y
authors.lastname: Gao