In the title compound, [Co(C8H7BrNO)3], the CoIII ion is coordinated in a slightly distorted octa­hedral environment by three N atoms and three O atoms from three bidentate 4-bromo-2-(methyl­imino­meth­yl)phenolate ligands. The dihedral angles between the benzene rings are 82.6 (2), 57.1 (2) and 62.9 (2)°. In the crystal, mol­ecules are linked by pairs of weak C—H⋯Br hydrogen bonds, forming inversion dimers.

In both complex mol­ecules in the asymmetric unit, the FeIII ion has a distorted O5Cl octa­hedral coordination environment defined by two bidentate 2-eth­oxy-6-formyl­phenolato ligands, one Cl atom and one water mol­ecule. In the crystal, O—H⋯O hydrogen bonds link the two independent mol­ecules to form a dimer while the solvent mol­ecule is linked to the complex mol­ecule by a weak C—H⋯O hydrogen bond. Further weak C—H⋯O inter­actions along with weak C—H⋯Cl hydrogen bonds link the components into chains parallel to [001].