2-[(E)-4-Methoxybenzylidene]-1,2,3,4-tetrahydronaphthalen-1-one

Abstract

Two independent molecules (A and B) comprise the asymmetric unit of the title compound, C18H16O2. Molecule B is virtually superimposable upon A. Minor differences are noted in the dihedral angles between the terminal benzene rings of 56.03 (10) and 54.62 (10)°, and in the orientations of methoxy groups with respect to the benzene rings to which they are attached [C - O - C - C torsion angles = 169.11 (19) and -172.37 (18)°]. The cyclohexene ring of each fused ring system has a screw-boat conformation. In the crystal, C - H⋯π interactions assemble molecules into a supramolecular array in the ab plane. © 2012 International Union of Crystallography.