Synthesis, IR, UV Studies of Schiff’s Base Ligand Dichloro bis (p-methoxy phenyl carbonyl azomethine benzene sulphanilamide and p-methoxy phenyl carbonyl azomethine thiocarbamide and their Mn(II),Co(II),Ni(II) and Cu(II)Complexes

A novel Schiff’s base ligand p-methoxy phenyl carbonyl azomthine benzene sulphanilamide was isolated from refluxing p-methoxy phenyl glyoxal (10 mmol) and p-amino benzene sulphonamide (10 mmol) in acetonic medium in 1:1 ratio for 4 hours. The configuration of resulting ligand was illustrated by elemental analysis, melting-point analysis, electronic spectra and IR studies. Schiff’s base metal complexes of Mn(II), Co(II), Ni(II), Cu(II) with ligand were also analyzed by molar-conductance studies and magnetic-moment studies. Bsed on the analytical studies, transition-metal complexes have been designated with the composition, [ML2]Cl2 where M = Mn(II), Co(II), Ni(II), Cu(II) and L = p-methoxy phenyl carbonyl azomethine benzene sulphanilamide. The values of molar-conductance indicated an electrolytic character of metal-complexes. As per the spectroscopic analysis, the synthesized complexes have been assigned with six-coordinated octahedral and/or tetragonal geometry. All of the synthesized products were also assessed for antibacterial behavior against the bacterias S. typhi and E. coli. Based on the result of antimicrobial studies, the higher inhibition potential of metal-complexes, as compared to individual Schiff’s base ligand was recognized.