Di-μ-chlorido-bis­(chlorido­{N′-[phen­yl(pyridin-2-yl-κN)methyl­idene]pyridine-2-carbohydrazide-κ²N′,O}cadmium)

The title compound, [Cd₂Cl₄(C₁₈H₁₄N₄O)₂], was obtained from the reaction of Cd(NO₃)₂·4H₂O with 2-phenyl­pyridine­keton picolinoyl hydrazone and sodium chloride. Each Cd²⁺ cation is coordinated by two N atoms and one O atom of the tridentate ligand and three chloride anions, forming a distorted CdNOCl₃ octahedron. Each pair of adjacent metal cations is linked by two bridging chloride ligands, resulting in a dinuclear complex unit. The mol­ecular conformation is stabilized by intra­molecular N—H...N and C—H...O hydrogen bonds. In the crystal, mol­ecules are linked by nonclassical C—H...O and C—H...Cl hydrogen bonds into a three-dimensional network. In addition, π–π stacking inter­actions [centroid–centroid distances = 3.777 (2) and 3.631 (2) Å] contribute to the stabilization of the crystal packing.