Acta Cryst. (2009). E65, o336-o337 [ doi:10.1107/S1600536809001548 ]
Abstract: In the title compound, C19H14Cl2O4, intramolecular C-HO and C-HCl hydrogen bonds generate S(6) and S(5) ring motifs, respectively. In the crystal structure, intermolecular C-HO interactions between symmetry-related molecules involving two methylene groups and an O atom as a bifurcated acceptor generate an R21(6) ring motif. In the molecule, one of the furan rings is rotationally disordered by approximately 180° about the single C-C bond to which it is attached; the refined site-occupancy factors are 0.505 (7) and 0.495 (7). The major component of the disordered furan ring and the benzene ring form a dihedral angle of 88.8 (4)°. The dihedral angle between the major disorder component and the other furan ring is 81.9 (4)°. In addition, the crystal structure is stabilized by further intermolecular C-HO (×2) hydrogen bonds and C-H interactions.
Online 17 January 2009
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