Vanadium(V) Complexes Derived from N'-(3-Bromo-2-hydroxybenzylidene)-2-methylbenzohydrazide and N'-(3-Bromo-2-hydroxybenzylidene)-2-methoxybenzohydrazide: Syntheses and Structures.

Two vanadium(V) complexes, [VOL1L'] and [VOL2L']·0.5CH3OH, were prepared by the reaction of [VO(acac)2] (where acac = acetylacetonate) and benzohydroxamic acid (HL') withN'-(3-bromo-2-hydroxybenzylidene)-2-methylbenzohydrazide (H2L1) andN'-(3-bromo-2-hydroxybenzylidene)-2-methoxybenzohydrazide (H2L2), respectively, in methanol. Molecular component and structures of the complexes were determined by elemental analysis,1H NMR, IR and UV spectra. Single crystal structures of the complexes were determined by X-ray diffraction. The V atoms are in octahedral coordination. [ABSTRACT FROM PUBLISHER]