title: [2,7-Dimeth-oxy-8-(2-naphtho-yl)naphthalen-1-yl](naphthalen-2-yl)methanone.
abstract: The mol-ecule of the title compound, C(34)H(24)O(4), possesses crystallographically imposed twofold C(2) symmetry. The two 2-naphthoyl groups at the 1- and 8-positions of the central naphthalene ring are aligned almost anti-parallel [5.21 (5)°]. The dihedral angle between the central 2,7-dimeth-oxy-naphthalene unit and the terminal naphthyl groups is 75.13 (4)°. In the crystal, weak C-H⋯O hydrogen bonds and π-π stacking inter-actions [centroid-centroid and inter-planar distances are 3.6486 (8) and 3.3734 (5) Å, respectively] are observed.
authors.affiliation: Department of Organic and Polymer Materials Chemistry, Tokyo University of Agriculture & Technology, 2-24-16 Naka-machi, Koganei, Tokyo 184-8588,  Japan.
authors.forename: Takehiro
authors.initials: T
authors.lastname: Tsumuki
authors.forename: Daichi
authors.initials: D
authors.lastname: Hijikata
authors.forename: Akiko
authors.initials: A
authors.lastname: Okamoto
authors.forename: Hideaki
authors.initials: H
authors.lastname: Oike
authors.forename: Noriyuki
authors.initials: N
authors.lastname: Yonezawa
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