5,7-Dihydroxy-3,6-dimethoxy-2-(4-methoxyphenyl)-4H-chromen-4-one monohydrate

The title compound, C18H16O7·H2O, is a flavonoid isolated from Dodonaea viscosa. The benzopyran ring system of the flavonoid is essentially planar [maximum deviation = 0.025 (2) Å] and inclined at 5.83 (2)° to the attac...

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Bibliographic Details
Main Authors: Akhtar Mohammad, Itrat Anis, Vickie McKee, Josef W. A. Frese, Muhammad Raza Shah
Format: Article
Language:English
Published: International Union of Crystallography 2010-11-01
Series:Acta Crystallographica Section E
Online Access:http://scripts.iucr.org/cgi-bin/paper?S1600536810039012
Description
Summary:The title compound, C18H16O7·H2O, is a flavonoid isolated from Dodonaea viscosa. The benzopyran ring system of the flavonoid is essentially planar [maximum deviation = 0.025 (2) Å] and inclined at 5.83 (2)° to the attached benzene ring. The water of hydration is involved in extensive hydrogen bonding, assembling the molecules into a supramolecular network via classical intermolecular O—H...O hydrogen bonding. The crystal structure is further stabilized by π–π stacking interactions [centroid–centroid distance between benzene rings = 3.564 (3) Å].
ISSN:1600-5368