Acta Cryst. (2009). E65, o336-o337  [ doi:10.1107/S1600536809001548 ]

3-(2,4-Dichlorophenyl)-1,5-di-2-furylpentane-1,5-dione

H.-K. Fun, R. Kia, P. S. Patil and S. M. Dharmaprakash

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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