Acta Crystallographica Section E: Crystallographic Communications | |
Crystal structure of 1,4-diethoxy-9,10-anthraquinone | |
Kawase, T.1  Ono, K.2  Li, S.3  Inoue, Y.3  Kitamura, C.3  Takehara, M.3  | |
[1] Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan;Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya, Aichi 466-8555, Japan;Department of Materials Science, School of Engineering, The University of Shiga Prefecture, 2500 Hassaka-cho, Hikone, Shiga 522-8533, Japan | |
关键词: CRYSTAL STRUCTURE; 9,10-ANTHRAQUINONE; CRYSTALLOGRAPHICALLY INDEPENDENT MOLECULES; [PI]-[PI] INTERACTIONS; C-H...O INTERACTIONS; | |
DOI : 10.1107/S2056989015011901 | |
学科分类:数学(综合) | |
来源: International Union of Crystallography | |
【 摘 要 】
The asymmetric unit of the title compound, C18H16O4, contains two crystallographically independent molecules. The anthraquinone ring systems are slightly bent with dihedral angles of 2.33 (8) and 13.31 (9)° between the two terminal benzene rings. In the crystal, the two independent molecules adopt slipped-parallel π-overlap with an average interplanar distance of 3.45 Å, forming a dimer; the centroid–centroid distances of the π–π interactions are 3.6659 (15)–3.8987 (15) Å. The molecules are also linked by C—H⋯O interactions, forming a tape structure along the a-axis direction. The crystal packing is characterized by a dimer-herringbone pattern.
【 授权许可】
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