Reactions of [Cu₄(2-IBz)₄(H₂O)₂] with various substituted pyridines in chloroform resulted in a series of isotypic complexes [Cu₂(2-IBz)₄L₂]·HCCl₃ (2-IBz = 2-iodobenzoate, L = Py (1), 3-MePy (2), 4-MePy (3), 3-ClPy (4), 3-BrPy (5), 3,5-ClPy (6) and 3,5-MePy (7)). In all cases, halogen bonding between iodine atoms of 2-iodobenzoate units is observed; in 6, it is accompanied by Cl⋯I contacts between 3,5-ClPy and 2-IBz ligands. The energy of halogen bonding in all structures varies from 1.3 to 4.3 kcal/mol.