{μ-trans-N,N'-Bis[2-(2-hydroxy-ethyl-amino)eth-yl]oxamidato(2-)}bis-[picrato-nickel(II)].

The title complex, [Ni(2)(C(6)H(2)N(3)O(7))(2)(C(10)H(20)N(4)O(4))], contains a centrosymmetric binuclear unit in which the oxamide ligand (located on a centre of symmetry) acts in a bis--tetra-dentate fashion and the picrate anion binds to nickel(II) in a bidentate mode. The Ni(II) atom displays a distorted octa-hedral coordination with axial elongation. The binuclear mol-ecules are linked by inter-molecular N-H⋯O, O-H⋯O and C-H⋯O hydrogen bonds into a two-dimensonal supra-molecular network extending parallel to (100).