title: 1,4-Bis(benzimidazol-2-yl)benzene dimethyl-formamide disolvate.
abstract: The aromatic mol-ecule of the title compound, C(20)H(14)N(4)·2C(3)H(7)NO, 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 dimethyl-formamide solvent molecule, thus giving rise to the title 1:2 aggregate. These aggregates are further linked in the crystal structure by aromatic π-π stacking inter-actions [centroid-centroid distance = 6.356 (2) Å].
authors.affiliation: Ordered Matter Science Research Center, College of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, People's Republic of China.
authors.forename: De-Hong
authors.initials: DH
authors.lastname: Wu
authors.forename: Ling
authors.initials: L
authors.lastname: Hu