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Acta Cryst. (2013). E69, o1539-o1540
[ doi:10.1107/S1600536813024999 ]

5-Chloro-2-(thiophen-2-yl)-1-(thiophen-2-ylmethyl)-1H-benzimidazole-6-chloro-2-(thiophen-2-yl)-1-(thiophen-2-ylmethyl)-1H-benzimidazole (0.94/0.06)

D. K. Geiger and M. R. Nellist

Abstract: There are two independent molecules in the asymmetric unit of the title compound, C16H11ClN2S2. The structure exhibits rotational disorder of the 2-thiophen-2-yl substituent in each of the unique molecules with a major:minor component ratio of 0.927 (2):0.073 (2). For one of the symmetry-unique molecules, 6.0 (2)% of the sites are occupied by the 6-chloro-isomer. The major component thiophene rings make dihedral angles of 38.90 (12) and 36.32 (11)° with the benzimidazole rings in the two independent molecules. In the crystal, molecules are linked into chains parallel to [100] via weak C-H...N interactions.

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