Salicylaldehyde thiodiacylhydrazone(STZ), 5-bromosalicylaldehyde thiodiacyl hydrazone(BSTZ) and their Cu(Ⅱ) complexes: STZ(Cu) 2 and BSTZ(Cu) 2 were synthesized. The structures of the ligands and complexes were characterized by elemental analysis, IR, 1H NMR and UV spectroscopy. The bacteriostatic test showed that the ligands were more bioactive than the complexes.
A new Schiff base, 2 hydroxy 1 napthaldehyde 2 amino thiazole(HNATS) and its Cu(Ⅱ) complex was synthesized. The complex[Cu(Ⅱ) (HNATS) 2] could exhibit an efficient peroxitase like catalytic activity, and catalyze the coupling reaction of 2,4 dichlorophenol and 4 amino antipyrine with hydrogen peroxide. The effect of SDS on the catalytic activity of mimetic enzyme was studied. Based on the reaction, the determination of O ·- 2 by this new spectrophotometric method was developed. The proposed method was used to determine SOD activity of garlic, scallion and onion with satisfactory results.
