title: Crystal structure of 9-methacryloylanthracene.
abstract: In the title compound, C18H14O, with systematic name 1-(anthracen-9-yl)-2-methyl-prop-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 mol-ecules 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 mol-ecule displaced by translation in the a-axis direction, forming sheets of parallel-planar anthryl groups packing in this direction.
authors.affiliation: Department of Chemistry, Cleveland State University, Cleveland OH 44115, USA.
authors.forename: Aditya
authors.initials: A
authors.lastname: Agrahari
authors.affiliation: Department of Chemistry, University of Akron, Akron OH 44325, USA.
authors.forename: Patrick O
authors.initials: PO
authors.lastname: Wagers
authors.affiliation: Department of Chemistry, Youngstown State University, Youngstown OH 44555, USA.
authors.forename: Steven M
authors.initials: SM
authors.lastname: Schildcrout
authors.affiliation: Department of Chemistry, Cleveland State University, Cleveland OH 44115, USA.
authors.forename: John
authors.initials: J
authors.lastname: Masnovi
authors.affiliation: Department of Chemistry, University of Akron, Akron OH 44325, USA.
authors.forename: Wiley J
authors.initials: WJ
authors.lastname: Youngs
keywords: acetyl­anthracene; aldol; crystal structure; methyl­ation; stereochemistry