Srivastava, TanuMishra, S.K.Tiwari, O.P.Tiwari, Kavindra NathKumar, PradeepKumar, JitendraSingh, Amit KumarSingh, AngarajDwivedi, Ashutosh2025-01-302025-01-3020219743618https://dl.bhu.ac.in/ir/handle/123456789/24804Green synthesis of two coordination complexes of zinc acetate with N^N moiety on quercetin, which is a flavonoid is carried out. The complexes were obtained in high yields (> 97%) by grinding methods without the involvement of any solvent. Neither catalyst nor any additives were needed to perform the reactions. It was characterized by FT-IR, UV-Vis, NMR, HRMS, and elemental analysis. Antioxidant activity was done through the DPPH method which was compared with ascorbic acid and ligand (Quercetin). The study reveals that Complex 1 (IC50 163.093�g/ml) has significant free radical scavenging activity as compared to complex 2 (IC50 258.683�g/ml). Biological activity was performed against microbes (E. coli and S. aureus). MIC value of complex 1 (15.50�g/ml E. coli, 7.18�g/ml S. aureus) was found more significant as compared to complex 2 (22.51�g/ml E. coli, 18.62�g/ml S. aureus) and quercetin. � RJPT All right reserved.Coordination complexesDPPHMinimum inhibitory concentrationSolid-stateArticlehttps://doi.org/10.52711/0974-360X.2021.00620