Crystal structure of 9-methacryloylanthracene

In the title compound, C(18)H(14)O, with systematic name 1-(anthracen-9-yl)-2-methyl­prop-2-en-1-one, the ketonic C atom lies 0.2030 (16) Å out of the anthryl-ring-system plane. The dihedral angle between the planes of the anthryl and methacryloyl moieties is 88.30 (3)° and the stereochemistry about the Csp (2)—Csp (2) bond in the side chain is transoid. In the crystal, the end rings of the anthryl units in adjacent mol­ecules associate in parallel–planar orientations [shortest centroid–centroid distance = 3.6320 (7) Å]. A weak hydrogen bond is observed between an aromatic H atom and the O atom of a mol­ecule displaced by translation in the a-axis direction, forming sheets of parallel-planar anthryl groups packing in this direction.