Crystal structure of 1,4-dieth­oxy-9,10-anthra­quinone

Acta Crystallographica Section E: Crystallographic Communications

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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