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. 2012 Feb 1;68(Pt 2):o265.
doi: 10.1107/S1600536811054778. Epub 2012 Jan 7.

3,3'-[(4-Nitro-phen-yl)methyl-ene]bis-(4-hy-droxy-2H-chromen-2-one)

N Ravikumar  1 , G Gopikrishna, K Anand Solomon
Affiliations

3,3'-[(4-Nitro-phen-yl)methyl-ene]bis-(4-hy-droxy-2H-chromen-2-one)

N Ravikumar et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

The molecular conformation of the title compound, C(25)H(15)NO(8), is stabilized by strong intramolecular O-H⋯O hydrogen bonds, resulting in the formation of S(1) (1)(7) ring motifs. In the crystal, π-π stacking inter-actions are observed between adjacent nitrobenzene and pyranone rings with a centroid-centroid distance of 3.513 (12) Å. The dihedral angles between the nitrobenzene ring and the coumarin ring systems are 65.61 (8) and 66.11 (8)° while the coumarin ring systems are inclined at 65.69 (8)°.

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Figures

Fig. 1.
Fig. 1.
Molecular structure of title compound with the atom numbering scheme. Displacement ellipsoids are drawn at 30% probability level. H atoms are presented as a small spheres of arbitrary radius.
Fig. 2.
Fig. 2.
Crystal packing diagram of the title compound.
See this image and copyright information in PMC

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