2-[(4-Chloro­phen­yl)sulfan­yl]-2-meth­oxy-1-phenyl­ethan-1-one: crystal structure and Hirshfeld surface analysis

The title compound, C(15)H(13)ClO(2)S, comprises (4-chloro­phen­yl)sulfanyl, benzaldehyde and meth­oxy residues linked at a chiral methine-C atom (the crystal is racemic). A twist in the methine-C—C(carbon­yl) bond [O—C—C—O torsion angle = 19.3 (7)°] leads to a dihedral angle of 22.2 (5)° between the benzaldehyde and methine+meth­oxy residues. The chloro­benzene ring is folded to lie over the O atoms, with the dihedral angle between the benzene rings being 42.9 (2)°. In the crystal, the carbonyl-O atom accepts two C—H⋯O inter­actions with methyl- and methine-C—H atoms being the donors. The result is an helical supra­molecular chain aligned along the c axis; chains pack with no directional inter­actions between them. An analysis of the Hirshfeld surface points to the important contributions of weak H⋯H and C⋯C contacts to the mol­ecular packing.