Synthesis Characterization and Antimicrobial Analyses of Iron (III) Complexes of 1-(imino-4-antipyrinyl)-8- aminonaphthalene

The synthesis and characterization of the perchlorate, nitrate, thiocyanate, chloride and bromide complexes of iron(III) with a new Schiff base ligand 1-(imino-4-antipyrinyl)-8-aminonaphthalene (DANC) prepared from 4-formyl antipyrine and 1,8-diaminonaphthalene have been done by elemental analysis, electrical conductance in non-aqueous solvents, infrared and electronic spectra as well as thermogravimetry. The infrared spectral data suggest that DANC acts as a neutral bidentate ligand coordinating through both the carbonyl oxygen and azomethine nitrogen. The UV-VIS spectral and magnetic susceptibility data suggest a high spin octahedral geometry around the central metal ion in all the complexes. The antibacterial and antifungal screening analyses of the ligand and the complexes reveals that the Schiff base and its metal complexes show significant activity against microorganisms.