Di-aqua-bis-[N-(2-fluoro-benz-yl)-N-nitroso-hydroxy-laminato-κ(2) O,O']nickel(II).

In the centrosymmetric title compound, [Ni(C7H6FN2O2)2(H2O)2], the Ni(II) cation is in a slightly distorted octa-hedral environment and is surrounded by four O atoms from the N-O groups of the organic ligands [Ni-O = 2.0179 (13) and 2.0283 (12) Å], and two water mol-ecules [Ni-O = 2.0967 (14) Å]. The N-(2-fluoro-benz-yl)-N-nitroso-hydroxy-laminate monoanions act as bidentate chelating ligands. In the crystal, the Ni cations in the columns are shifted in such a way that the coordinated water mol-ecules are involved in the formation of hydrogen bonds with the O atoms of the organic species of neighbouring mol-ecules. Thus, a two-dimensional network parallel to (100) is built up by hydrogen-bonded molecules.