Acta Cryst. (2006). E62, o209-o211  [ doi:10.1107/S160053680504047X ]

2',4'-Dihydroxy-5',6'-dimethoxychalcone

H. Usman, M. N. Jalaluddin, E. H. Hakim, Y. M. Syah and B. M. Yamin

Abstract: The title compound, C₁₇H₁₆O₅, an (E)-1-(4,6-dihydroxy-2,3-dimethoxyphenyl)-3-phenylprop-2-en-1-one, was isolated from a plant of genus Cryptocarya costata. The molecule adopts a trans configuration with respect to the positions of the benzene ring and the dihydroxydimethoxybenzaldehyde fragment about the olefinic C=C double bond. The molecules are linked by intermolecular hydrogen bonds to form ribbons extending parallel to the b axis.

Online 14 December 2005

Copyright © International Union of Crystallography
IUCr Webmaster