3,3′-[(4-Nitrophenyl)methylene]bis(4-hydroxy-2H-chromen-2-one)

N Ravikumar,K Anand Solomon,G Gopikrishna

doi:10.1107/s1600536811054778

Abstract

The molecular conformation of the title compound, C25H15NO8, 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 interactions 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)°.

Highlights

The molecular conformation of the title compound, C25H15NO8, is stabilized by strong intramolecular O—H O hydrogen bonds, resulting in the formation of S11(7) ring motifs
In the crystal, – stacking interactions 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)

Summary

Bruker Kappa APEXII CCD diffractometer

Sankar Foundation Research Institute, Naiduthota, Vepagunta, Visakhapatnam, Andhra Pradesh 530 047, India. R factor = 0.033; wR factor = 0.089; data-to-parameter ratio = 10.7. The molecular conformation of the title compound, C25H15NO8, is stabilized by strong intramolecular O—H O hydrogen bonds, resulting in the formation of S11(7) ring motifs. In the crystal, – stacking interactions 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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