Crystal structure and Hirshfeld surface analyses, inter-action energy calculations and energy frameworks of (Z)-4-benzyl-2-(4-methyl-benzylidene)-2H-[1,4]benzo-thia-zin-3(4H)-one.

The thia-zine ring in the title mol-ecule, C23H19NOS, exhibits a screw-boat conformation and is significantly folded along the S⋯N axis. In the extended structure, aided by C-H⋯π(ring) inter-actions, the mol-ecules pack in wave-like layers parallel to the bc plane. A Hirshfeld surface analysis of the crystal structure indicates that the most important contributions for the crystal packing are from H⋯H (50.3%) and H⋯C/C⋯H (35.9%) inter-actions. An evaluation of the electrostatic, dispersion and total energy frameworks in the crystal structure indicates that dispersion energy contribution dominates.