| Abstract: | Electrochemical and spectroscopic data of unsymmetrical and symmetrical mononuclear oxo-vanadium(IV)salicyldiimine complexes [VO(x,y-Sal)(x′,y′-Sal)Phen)] and [VO(x, y-Sal)(x′, y′-Sal)iPr)], where x, x′ =?5-H, 5-Br, 5-NO2 and y, y′ =?4-H, 4-MeO, were prepared and studied. Our results show tetradentate SalPhen or SaliPr coordinated in the equatorial plane. The electrochemical behavior is related to UV–Vis and IR spectra. Electron-withdrawing groups affected vanadium through π-acceptor properties of imine and electron-donation groups through π- and σ-donation via phenolic oxygen. |
