7,7′-Dihydroxy-4,4′-dimethyl-3,4-dihydro-2H,2′H-4,6′-bichromene-2,2′-dione

The title compound, C20H16O6, which contains one chiral centre, crystallizes as a racemate. The mean planes of the two coumarin units make a dihedral angle of 88.07 (2)°. The pyrone ring containing the chiral centre adopts a sofa conformation. In the crystal, four molecule...

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Bibliographic Details
Main Authors: M. Ramos Silva, Ali Mohammed Malla, Akhtar Ali, Mehtab Parveen, P. S. Pereira Silva
Format: Article
Language:English
Published: International Union of Crystallography 2011-01-01
Series:Acta Crystallographica Section E
Online Access:http://scripts.iucr.org/cgi-bin/paper?S160053681005244X