Di-μ-chlorido-bis-[aqua-(2,2'-bipyridine-κN,N')chloridocobalt(II)].

The title complex, [Co(2)Cl(4)(C(10)H(8)N(2))(2)(H(2)O)(2)], is composed of two Co(II) atoms, each hexa-coordinated by three Cl atoms, one 2,2'-bipyridine (bpy) ligand and one water mol-ecule in a distorted octa-hedral geometry. Neighboring Co(II) atoms are linked together by two Cl bridges, forming a dinuclear Co(II) complex with inversion symmetry. There are inter-molecular O-H⋯Cl hydrogen bonds and inter-molecular π-π stacking inter-actions between adjacent bpy ligands [centroid-centroid distance = 3.617 (2) Å] in the structure.