Acta Cryst. (2009). E65, o522  [ doi:10.1107/S1600536809004759 ]

1,4-Bis(benzimidazol-2-yl)benzene dimethylformamide disolvate

D.-H. Wu and L. Hu

Abstract: The aromatic molecule of the title compound, C₂₀H₁₄N₄·2C₃H₇NO, occupies a special position on an inversion center. The benzimidazole unit (planar to within 0.008 Å) forms a dihedral angle of 9.1 (2)° with the central benzene ring. The benzimidazole H atom participates in a hydrogen bond with the dimethylformamide solvent molecule, thus giving rise to the title 1:2 aggregate. These aggregates are further linked in the crystal structure by aromatic - stacking interactions [centroid-centroid distance = 6.356 (2) Å].

Online 13 February 2009

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