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. 2009 Jun 6;65(Pt 7):o1524.
doi: 10.1107/S1600536809021266.

3-Hydr-oxy-1,2-dimethoxy-anthraquinone

Yong-Jun Xu  1 , Xiao-Xi Yang, Hong-Bin Zhao
Affiliations

3-Hydr-oxy-1,2-dimethoxy-anthraquinone

Yong-Jun Xu et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

The title compound, C(16)H(12)O(5), was isolated from Morinda officinalis How. The anthraquinone ring system is almost planar, the dihedral angle between the two benzene rings being 1.12 (4)°. In the crystal structure, O-H⋯O and C-H⋯O hydrogen bonds link the mol-eculesin the crystallographic a-axis direction. Weak π-π stacking inter-actions [centroid-centroid distance between symmetry-related benzene rings of 3.699 (4) Å] are also present.

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Figures

Fig. 1.
Fig. 1.
The molecular structure showing the atomic-numbering scheme and displacement ellipsoids drawn at the 30% probability level.
Fig. 2.
Fig. 2.
The molecular packing showing the hydrogen bonding interactions as broken lines.
See this image and copyright information in PMC

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