Abstract
A new dinuclear vanadium(V) Schiff base complex [VO2(L)]2 with [OVV(µ-O)2VVO] core was synthesized and characterized by FT-IR and 1H NMR spectroscopy and single-crystal X-ray analysis. The X-ray structural analysis revealed a centrosymmetric structure with anti-coplanar configuration, consisting of two symmetry-independent complex parts. In each part, two edge sharing symmetry-related octahedral VVO centers connected two ONN Schiff base ligands. Epoxidation of cis‐cyclooctene was carried out in the presence of this complex, and the experimental procedures were optimized. The optimized experimental conditions were implemented and tested successfully for the epoxidation of some other substituted alkenes. Density functional theory (DFT) calculations were done to obtain the electronic and geometric structures of the complex. The in vitro antibacterial activity of the ligand (HL) and its corresponding vanadium(V) complex was evaluated against three gram-positive (S. aureus, E. faecalis, and B. cereus) and three gram-negative (P. aeruginosa, E. coli, and K. pneumoniae) bacterial strains.
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