title: (2,2'-Bipyridine-6,6'-dicarboxyl-ato-κ(3)N,N',O(6))(6'-carb-oxy-2,2'-bipyridine-6-carboxyl-ato-κ(3)N,N',O(6))cobalt(III).
abstract: The Co(III) atom in the title compound, [Co(C(12)H(6)N(2)O(4))(C(12)H(7)N(2)O(4))], is six-coordinated in a distorted octa-hedral geometry by four N atoms and two O atoms of the chelating 2,2'-bipyridine-6,6'-dicarboxyl-ate and 6'-carb-oxy-2,2'-bipyridine-6-carboxyl-ate ligands. Intermolecular O-H⋯O hydrogen bonds and face-to-face π-stacking inter-actions [centroid-centroid distance = 3.6352 (16) Å] between inversion-related pyridine rings link adjacent mononuclear units into a two-dimensional supra-molecular structure, and several inter-molecular C-H⋯O inter-actions are also observed.
authors.forename: Huimin
authors.initials: H
authors.lastname: Wang
authors.forename: Xiaojun
authors.initials: X
authors.lastname: Gu
authors.forename: Bingbing
authors.initials: B
authors.lastname: Zhang
authors.forename: Haiquan
authors.initials: H
authors.lastname: Su