Crystal structure of bis­[2-(1H-benzimid­azol-2-yl)-4-bromo­phenolato-κ²N³,O]cobalt(II)

The asymmetric unit of the title Co^II complex, [Co(C₁₃H₈BrN₂O)₂], contains two independent mol­ecules (A and B). In both mol­ecules, the Co^II cation is N,O-chelated by two 2-(1H-benzimidazol-2-yl)-4-bromo­phenolate anions in a distorted tetra­hedral geometry. In mol­ecule A, both chelating rings display an envelope conformation, with the flap Co atom lying 0.614 (6) and 0.483 (6) Å from the mean planes of the remaining atoms. In mol­ecule B, both chelating rings are approximately planar, the maximum deviations being 0.039 (4) and 0.076 (3) Å. In the crystal, mol­ecules are linked by classical N—H...O hydrogen bonds and weak C—H...O and C—H...Br hydrogen bonds into a three-dimensional supra­molecular network. Extensive π–π stacking is observed between nearly parallel aromatic rings of adjacent mol­ecules with centroid–centroid distances in the range 3.407 (3)–3.850 (4) Å.