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The title compound consists of discrete centrosymmetric [Ni(C10H12N3O2)(2)] molecules. The coordination around the Ni atom is square planar, involving four oxime N atoms of two chelating C2H2N2O2 groups. The oxime O atoms are linked by an intramolecular hydrogen bond [O ... O 2.546 (2) Angstrom] The Ni-N distances are 1.891 (2) and 1.846 (2) Angstrom, and the N-Ni-N angle within the NiC2N2 chelate ring is 82.75 (8)degrees. In the central portion of the molecule, the C=N distances are equal [1.297(3) and 1.298(3) Angstrom], while the two N-O distances are different [1.303 (3) and 1.386 (3) Angstrom].