Enhanced the Antioxidant Activity of 1-Amino-2-naphthol-4-Sulfonic acid by Complexation with Organotin(IV) Compounds
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Abstract
This study focuses on the measure the antioxidant activity by two methods: Free radical scavenging activity (DPPH) andCUPRAC Method fordi and tri- organotin(IV) compounds and contrasts whether the antioxidant activity of 1-Amino-2-naphthol-4-Sulfonicacid (L)and it’s organotin complexes have increased.Four organotin complexes (1-4)were successfully prepared by the condensations reactions of 1-Amino-2-naphthol-4-Sulfonicacid as aligandwih di and tri-organotin(IV)compounds.These prepared complexes were characterized by deferential techniques, infrared spectroscopy (FTIR), 119Sn-nuclear magnetic resonance (NMR) and 1H-NMR techniques. Organotin(IV) complexes showed higher antioxidant activity than aligand, due the metal moiety, while complex 3 showed higher antioxidant activity than other complexes.