Acta Crystallographica Section E (Apr 2014)
2,3-Diphenyl-2,3-dihydro-4H-1,3-benzothiazin-4-one
Abstract
In the title compound, C20H15NOS, the dihedral angle between the phenyl rings is 74.25 (6)°. The six-membered 1,3-thiazine ring has an envelope conformation with the C atom at the 2-position forming the flap. The crystal structure features weak C—H...O interactions, which lead to the formation of a tape motif along [110].