Synthesis of New Acyclic Schiff Base Oxovanadium(IV) Complexes and Their Electrochemical, Catecholase, and Antimicrobial Studies of Minimum Inhibitory Concentration

Abstract

<div><p>Catalytically active complexes containing [VO(IV)L] were synthesized by using Schiff base ligands L^1–5 and vanadyl sulfate. Ligands L^1–5 were obtained by the condensation of 5-methylsalicylaldehyde with diethylene triamine (L¹), tris(2-aminoethyl)amine (L²), triethylene tetramine (L³), N,N-bis(3-aminopropyl)ethylenediamine (L⁴) and N,N- bis(aminopropyl) piperazine (L⁵). All the complexes were characterized by elemental and spectral analysis. ESR spectra for the mononuclear [VO(IV)L] complexes show eight lines, square pyramidal geometry. Room temperature magnetic moment for the complexes was around 1.73 B.M. Electrochemical and catalytic studies of the complexes were compared on the basis of chain length of the imine compartment. All the [VO(IV)L^1–5] complexes were screened antibacterial activity of MIC.</p></div