cis-Dioxido[N′-(2-oxidobenzylidene)pyridinium-4-carbohydrazidato-κ3O,N′,O′]vanadium(V)

Abstract

The title Schiff base complex, [V(C13H10N3O2)O2], features a square-pyramidal coordination geometry defined by the O,N′,O′-donors of the tridentate Schiff base ligand and two oxide O atoms; one oxide O atom occupies the apical position. In the crystal, pyridinium–oxide N—H...O hydrogen bonds lead to zigzag supramolecular chains with a flattened topology along [101]. The investigated crystal was twinned by nonmerohedry; the minor component refined to 18.5 (5)%.