title: 4-[4-(1H-Imidazol-4-yl)phen-yl]-1H-imidazole.
abstract: In the mol-ecule of the title compound, C(12)H(10)N(4), the two imidazole substituents are related by inversion symmetry and each forms a dihedral angle of 25.02 (8)° with the benzene ring. In the crystal, mol-ecules are linked through N-H⋯N hydrogen bonds, forming cyclic units [graph-set R(4) (4)(28)], which generate a layered structure extending across (011).
authors.affiliation: Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062,  People's Republic of China.
authors.forename: Qian
authors.initials: Q
authors.lastname: Wang
authors.forename: Xiao-Li
authors.initials: XL
authors.lastname: Zhao