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. 2008 Feb 15;64(Pt 3):o597.
doi: 10.1107/S1600536808004169.

1,3-Dihydr-oxy-9,10-dioxo-9,10-di-hydro-anthracene-2-carbaldehyde

Khalijah Awang, Nor Hadiani Ismail, Rohaya Ahmad, Nor Hafizoh Saidan, Pascal Retailleau

1,3-Dihydr-oxy-9,10-dioxo-9,10-di-hydro-anthracene-2-carbaldehyde

Khalijah Awang et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

The title compound, C(15)H(8)O(5), also known as nordamnacanthal, was isolated from the Malaysian Morinda citrifolia L. The 20 non-H atoms are coplanar. The structure is stabilized by intra-molecular O-H⋯O hydrogen bonds and inter-molecular O-H⋯O and C-H⋯O hydrogen bonds, forming bilayers of mol-ecular tapes with alternating stacking directions along the a axis.

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Figures

Fig. 1.
Fig. 1.
Perspective view of the title compound with the atom numbering; displacement ellipsoids are at the 50% probability level. The intramolecular O—H···O interactions are shown as dotted lines.
Fig. 2.
Fig. 2.
Part of the crystal structure showing non-parallel molecular slabs forming herringbone pattern along a. (Intra-)Inter-molecular hydrogen bonds are indicated by (dotted) dashed lines. Symmetry codes: as in Table 1.
Fig. 3.
Fig. 3.
The crystal packing showing the two orientations taken by the stacking of molecular tapes. Note the offset between successive layers.
See this image and copyright information in PMC

References

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