4-{(4-Chlorophenyl)[4-(4-methylphenyl)-1,2,3-selenadiazol-5yl]methyl}-4,5, 6,7-tetra-hydro-1,2,3-benzoselenadiazole

In the title compound, C₂₂H₁₉ClN₄Se ₂, the mean plane of the non-fused selenadiazole ring forms dihedral angles of 54.20 (16)° and 70.48 (11)°, respectively, with the essentially planar [maximum deviations of 0.025 (5) and 0.009 (2) Å, respectively] methylphenyl and chlorophenyl substituents. The tetra-hydro-1,2,3-benzoselenadiazole group is disordered over two sets of sites with a refined occupancy ratio of 0.802 (5):0.198 (5). In the crystal, weak intermolecular C-H⋯N inter-actions are observed.