Abstract
The synthesis and properties of oxovanadium(IV) complexes with tetradentate Schiff bases obtained by condensation of two moles of acetylacetone, trifluoroacetylacetone, salicylaldehyde and its 5-chloro and 5-nitro derivatives, with optically active 1,2-diamines, namely (+) propylenediamine, (+) and meso butanediamine, (+) and meso cyclohexanediamine, (-) and meso stilbenediamine, are described. The infrared, circular dichroism and electronic spectra are reported and discussed. The factors influencing the formation of hexacoordinate adducts with donor bases are also discussed.