Monooxovanadium(V) complexes with bidentateN-phenylbenzohydroxamate

Abstract

Two complexes of oxovanadium(V) with VO(ONO)-(OO)-type coordination were synthesized and analysed by X-ray diffraction. These compounds are (acetylacetone benzoylhydrazonato-O,N,O')(N-hydroxy-N-phenylbenzamido-O,O')oxovanadium(V), [VO(C 12 H 12 N 2 O 2 )(C 13 H 10 NO 2 )], and (N-hydroxy-N-phenylbenzamido-O,O')oxo(N-salicylidene-L-alaninato-O,N,O')vanadium(V), [VO(C 10 H 9 NO 3 )(C 13 H 10 NO 2 )]; N-hydroxy-N-phenylbenzamide is also known as N-phenylbenzohydroxamic acid. The distorted octahedral coordination at vanadium is similar in both complexes; the equatorial plane is defined by one N and two O atoms of the tridentate hydrazone ligand and the oxime O atom of the hydroxamate ligand, while the axial oxo group is trans to the carbonyl O atom of the hydroxamate ligand.