trans-Diaquabis(quinoline-2-carboxylato)nickel(II) dimethylformamide disolvate

Abstract

In the title monomeric complex, [Ni(C20H12N2O4)2(H2O)2]·2C3H7NO, the cation lies on a centre of symmetry in a distorted octa­hedral environment. The organic ligand acts in an O,N‐chelating mode, defining the equatorial plane, while two aqua mol­ecules occupy the axial sites. The mol­ecules bind to each other and to the uncoordinated solvent molecules in layers parallel to (100) through a complex hydrogen‐bonding scheme.