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The crystal structure of the title compound - meso -C 26 H 24 N 2 O 2 S 2 with two stereocenters - has half the mol-ecule in the asymmetric unit with the other half generated by a crystallographic center of inversion. The thia-zine ring is in a conformation that is between half-chair and envelope [θ = 52.51 (17)°]. The phenyl ring on the 2-carbon atom of the thia-zine ring is pseudo-axial. The central phenyl ring of the mol-ecule is close to orthogonal to the phenyl rings on either side with an angle of 76.85 (11)° between those planes. In the crystal, pairwise, weak C-H⋯O hydrogen bonds between the central phenyl ring and the oxygen atoms of neighboring mol-ecules result in continuous strips propagating along the a -axis direction. Hydro-phobic inter-actions of the C-H⋯π type are also observed.

Crystal structure ofmeso-3,3′-(1,4-phenylene)bis(2-phenyl-2,3,5,6-tetrahydro-4H-1,3-thiazin-4-one)