Abstract
In the title compound, C15H12OS, the cyclohexene ring has a twisted boat conformation with the C atom between the ketone and methylene atom and this methylene C atom lying 0.280 (3) and 0.760 (3) angstrom, respectively, from the plane through the remaining four atoms (r.m.s. deviation = 0.004 angstrom). The dihedral angle between the benzene and thiophene rings [21.64 (9)degrees] indicates an overall twist in the molecule. The thiophene S and ketone O atoms are anti, an orientation that allows the close approach of these atoms [3.3116 (17) angstrom] in the crystal structure and which leads to the formation of helical supramolecular chains along the c axis.