title: 2-(4-Nitro-phen-yl)-4,5-diphenyl-1H-imidazol-3-ium chloride.
abstract: In the cation of the title compound, C(21)H(16)N(3)O(2) (+)·Cl(-), the N atom in the 3-position of the imidazole ring is protonated. The three pendant aromatic rings are twisted from the plane of the imidazolium ring by dihedral angles of 31.69 (14)°, 31.09 (14)° and 34.77 (14)°. In the crystal structure, N-H⋯Cl hydrogen bonds link the mol-ecules, forming a chain parallel to the b axis.
authors.affiliation: Ordered Matter Science Research Center, College of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, People's Republic of China, and Department of Physics, Southeast University, Nanjing 210096, People's Republic of China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Zhang