title: Bis(μ-biphenyl-2,2'-dicarboxyl-ato)bis-[(2,2'-bipyridine)copper(II)].
abstract: The title compound, [Cu(2)(C(14)H(8)O(4))(2)(C(10)H(8)N(2))(2)], is a centrosymmetric binuclear copper(II) complex, with a Cu⋯Cu separation of 6.136 (16) Å. The Cu atom displays a cis-CuN(2)O(2) square-planar geometry, although two long (> 2.43 Å) Cu⋯O contacts complete a distorted cis-CuN(2)O(4) octa-hedron. Extensive C-H⋯O hydrogen bonds link the mol-ecules into a three-dimensional network.
authors.affiliation: Department of Chemistry and Environmental Science, Zhangzhou Normal University, Zhangzhou, Fujian 363000, People's Republic of China.
authors.forename: Hong-Xu
authors.initials: HX
authors.lastname: Guo
authors.forename: Min
authors.initials: M
authors.lastname: Liang
authors.forename: Bin
authors.initials: B
authors.lastname: Lin
authors.forename: Qing-Hua
authors.initials: QH
authors.lastname: Wang
authors.forename: Xi-Zhong
authors.initials: XZ
authors.lastname: Li