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

Date Published: March 01, 2012

Publisher: International Union of Crystallography

Author(s): Gholam Hossein Shahverdizadeh, Seik Weng Ng, Edward R. T. Tiekink, Babak Mirtamizdoust.


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)%.

Partial Text

For a related Schiff base vanadyl complex containing a protonated pyridyl residue, see: Yu et al. (2007 ▶). For the crystallization procedure, see: Harrowfield et al. (1996 ▶). For a related structure, see: Shahverdizadeh et al. (2012 ▶). For additional structural analysis, see: Spek (2009 ▶); Addison et al. (1984 ▶).