Acta Cryst. (2008). E64, o2298  [ doi:10.1107/S1600536808035848 ]

2-(4-Chlorophenyl)-5-{3,4-dibutoxy-5-[5-(4-chlorophenyl)-1,3,4-oxadiazol-2-yl]thiophen-2-yl}-1,3,4-oxadiazole

H.-L. Li, H.-W. Wang, R.-Z. Lu and H.-B. Wang

Abstract: In the title compound, C₂₈H₂₆Cl₂N₄O₄S, the dihedral angles between the two chlorophenyl rings and the two oxadiazol rings are 10.51 (4)° and 13.55 (3)°, respectively. The thiophene ring is oriented at dihedral angles of 5.59 (4)°, 8.33 (4)° and 4.41 (4)°, 11.05 (3)°, respectively, with respect to the two oxadiazol and the two chlorophenyl rings. The intramolecular C-HO hydrogen bond results in the formation of a five-membered ring. In the crystal structure, - contacts between the oxadiazol rings, the chlorophenyl rings and the chlorophenyl and oxadiazol rings [centroid-centroid distances = 3.428 (3) Å, 3.750 (3) Å and 3.768 (3) Å, respectively] are present.

Online 8 November 2008

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