title: 2,3-Dimeth-oxy-5,12-tetra-cenequinone.
abstract: The mol-ecule of the title compound, C(20)H(14)O(4), is approximately planar [maximum deviation 0.168 (2) Å]. The two meth-oxy groups are slightly twisted relative to the plane of the 5,12-tetra-cenequinone system, with twist angles of 3.3 (3) and 5.6 (2)°. All O atoms are involved in intermolecular C-H⋯O inter-actions and the mol-ecules are arranged into slipped face-to-face stacks along the b axis via π-π inter-actions with an inter-planar distance of 3.407 (2) Å.
authors.affiliation: Department of Materials Science and Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan.
authors.forename: Chitoshi
authors.initials: C
authors.lastname: Kitamura
authors.forename: Naoki
authors.initials: N
authors.lastname: Akamatsu
authors.forename: Akio
authors.initials: A
authors.lastname: Yoneda
authors.forename: Takeshi
authors.initials: T
authors.lastname: Kawase