title: [2,7-Dieth-oxy-8-(4-fluoro-benzo-yl)naphthalen-1-yl](4-fluoro-phen-yl)methanone.
abstract: In the mol-ecule of the title compound, C28H22F2O4, the benzoyl groups are aligned almost anti-parallel and the fluorobenzene rings form a dihedral angle of 14.12 (7)°. The dihedral angles between the 2,7-dieth-oxy-naphthalene ring system and the benzene rings are 70.00 (4) and 67.28 (4)°. In the crystal, mol-ecules are linked by C-H⋯O and C-H⋯F hydrogen bonds, forming layers parallel to the ab plane. The layers are further connected by π-π inter-actions [centroid-centroid distances of 3.6115 (10) Å] into a three-dimensional structure.
authors.affiliation: Department of Organic and Polymer Materials Chemistry, Tokyo University of Agriculture & Technology (TUAT), Koganei, Tokyo 184-8588, Japan.
authors.forename: Saki
authors.initials: S
authors.lastname: Mouri
authors.forename: Daichi
authors.initials: D
authors.lastname: Hijikata
authors.forename: Katsuhiro
authors.initials: K
authors.lastname: Isozaki
authors.forename: Noriyuki
authors.initials: N
authors.lastname: Yonezawa
authors.forename: Akiko
authors.initials: A
authors.lastname: Okamoto