Ni and Co binary and ternary complexes of 3-formylchromone: spectroscopic characterization, antimicrobial activities, docking and modeling studies.

Reactions of 3-formylchromone (L) with Ni(ii) and Co(ii) ions having different anions (acetate, perchlorate, nitrate, and chloride) yielded a series of binary and ternary octahedral complexes with the general formula [ML L' X (S) ]Z ·S, where M = Ni or Co, = 1-3, L' = auxiliary ligand = 8-hydroxyquinoline or 1,10-phenanthroline, = 1 or 2, X = acetate or chloride, = 0 or 2, S = HO or MeOH, = 0-2, Z = nitrate or perchlorate and = 0-1.5. Elemental and thermal analyses and infra-red, electronic, mass, magnetic susceptibility and molar conductivity measurements were successfully utilized to characterize the structures of the chromone complexes.