Diaquabis{4-[(pyridin-2-yl)methylideneamino]benzenesulfonato-κ2 N,N′}nickel(II) tetrahydrate

Abstract

In the title complex, [Ni(C12H9N2O3S)2(H2O)2]·4H2O, the NiII ion is coordinated by four N atoms from two bidentate chelating 4-[(pyridin-2-yl)methyl­idene­amino]­benzene­sulfonate ligands and two O atoms from cis-related water mol­ecules in a slightly distorted octa­hedral environment [Ni—N = 2.071 (3)–2.121 (3) Å and Ni—O = 2.071 (2) and 2.073 (3) Å]. In the crystal, the coordinated water mol­ecules and the four water mol­ecules of solvation are involved in inter­molecular O—H⋯O hydrogen-bonding inter­actions with water and sulfon­ate O-atom acceptors, giving a three-dimensional framework structure.