Bis{(Z)-[(E)-2-(pyridin-2-yl­methyl­idene)hydrazin-1-yl­idene][(pyridin-2-yl)methyl­sulfan­yl]methane­thiol­ato}nickel(II)

The title compound, [Ni(C₁₃H₁₁N₄S₂)₂], was obtained by the reaction of S-2-picolyldi­thio­carbazate and pyridine-2-carbaldehyde with nickel(II) acetate. The Ni^II atom is located on a twofold rotation axis and is bonded to four N atoms at distances of 2.037 (8) and 2.109 (9) Å, and to two S atoms at a distance of 2.406 (3) Å, leading to a distorted octa­hedral coordination. The angle between the mean planes of the coordinating moieties of the two symmetry-related tridentate ligands is 83.3 (2)°. In the crystal, complex mol­ecules are linked by weak C—H...S hydrogen bonds, π–π inter­actions between the pyridine rings [centroid–centroid distance = 3.775 (9) Å] and C—H...π inter­actions. The hydrogen-bonding inter­actions lead to the formation of layers parallel to (010); π–π inter­actions link these layers into a three-dimensional network.