(2,4-Dihydroxy-6-methoxyphenyl)(3,5-dihydroxyphenyl)methanone monohydrate

Abstract

The title benzophenone compound, C 14H 12O 6·H 2O, was isolated from the bark of Garcinia hombroniana Pierre (Guttiferae). The molecule is twisted, the dihedral angle between the two benzene rings being 59.13 (7)°. The methoxy group is approximately coplanar with the attached benzene ring, with a C-O-C-C torsion angle of 1.91 (18)°. The water molecule is disordered over two positions in a 0.555 (19):0.445 (19) ratio. An intra-molecular O- H⋯O hydrogen bond generates an S(6) ring motif. The crystal structure is stabilized by intermolecular O-H⋯O hydrogen bonds. These interactions link the molecules into sheets parallel to the ac plane. The sheets are stacked along the b axis by π-π interactions, with centroid-centroid distances of 3.6219 (7) Å. A weak O-H⋯π inter-action was also noted.