title: Aqua-(2,2'-bipyrimidine-κN,N')(succin-ato-κO,O)copper(II) dihydrate.
abstract: In the crystal structure of the title compound, [Cu(C(4)H(4)O(4))(C(8)H(6)N(4))(H(2)O)]·2H(2)O, the Cu(II) atom is chelated by a 2,2'-bipyrimidine (bpm) ligand and a succinate anion in the basal plane; a water mol-ecule in the apical position completes the slightly distorted square-pyramidal coordination geometry. Another carboxyl-ate O atom from an adjacent complex is located in the opposite apical direction, with a Cu⋯O distance of 2.706 (3) Å, and is not considered as a bridging atom. Extensive O-H⋯O and O-H⋯N hydrogen bonding is present in the crystal structure.
authors.affiliation: College of Mechanical and Material Engineering, Functional Materials Research Institute, China Three Gorges University, Yichang 443002, People's Republic of China.
authors.forename: Xi-Jun
authors.initials: XJ
authors.lastname: Ke
authors.forename: Dong-Sheng
authors.initials: DS
authors.lastname: Li
authors.forename: Jun
authors.initials: J
authors.lastname: Zhao
authors.forename: Qiu-Fen
authors.initials: QF
authors.lastname: He
authors.forename: Cai
authors.initials: C
authors.lastname: Li