Ethylenediammonium aquabis(malonato)-oxovanadate(IV)

Abstract

In the anion of the title compound, (C 2 H 10 N 2 )[VO(H 2 O)-(C 3 H 2 O 4 ) 2 ] or H 2 en[VO(mal) 2 H 2 O], vanadium(IV) is distorted-octahedrally coordinated by six donor O atoms. The two malonate ligands are situated in the equatorial plane, whereas the oxo and the water ligand occupy axial positions. The apical V=O bond exhibits a strong trans influence. The anion possesses crystallographically imposed C 2 symmetry, with the central V atom, the oxo and the water ligand lying on the twofold axis. © 2003 International Union of Crystallography Printed in Great Britain - all rights reserved.