Trisodium diaquabis(malonato-κ2O,O′)nickelate(II) chloride hexahydrate

Abstract

In the title compound, Na3[Ni(C3H2O4)2]Cl·6H2O, two crystallographically independent Ni atoms lie on centres of symmetry, each coordinated by four O atoms from two malonate ligands and by two water mol­ecules in a distorted octa­hedral geometry. The Ni—O bond lengths are in the range 1.994 (18)–2.137 (2) Å. The three Na+ ions are coordinated by seven O atoms, six O atoms, and five O and one Cl atom. The crystal packing is stabilized by the three-dimensional hydrogen-bonding network formed by O—H⋯O and O—H⋯Cl hydrogen bonds.