New Carboxamid ligand and its metal complexes containing sulfonamide group: Synthesis, Characterization, DNA cleavage and antimicrobial activity

In this work, N-(4-(N-acetylsulfamoyl)phenyl)-2-benzoyl-3-oxo-3-phenylpropanamide (HL) was synthesized by treating the appropriate dibenzoylaceticacid-N-carboxyethylamide with N-(4-aminophenyl)sulfonylacetamide and also characterized by using various analytical and spectroscopic techniques. Further, six metal complexes were synthesized from Zn(II), Ni(II), Mn(II), Cu(II), Co(II), and Pd(II) acetate and ligand in 1:2 ratio respectively. While Cu(II) and Pd(II) complexes exhibited square planar geometry, the others displayed octahedral geometry. Newly synthesized compounds were performed for antioxidant, DNA cleavage and antimicrobial activities. Tested compounds exhibited great potential antioxidant activity, especially Zn and Pd complexes. DNA cleavage results indicated that DNA could cleave with compounds through interaction. These compounds were investigated for their antimicrobial activity against seven microorganism species and showed moderate antimicrobial activity.