title: Imidazolium 3-nitro-benzoate.
abstract: In the title compound, C(3)H(5)N(2) (+)·C(7)H(4)NO(4) (-), the benzene ring forms a dihedral angle of 40.60 (5)° with the imidizolium ring. The nitro-benzoate anion is approximately planar: the benzene ring makes dihedral angles of 3.8 (3) and 3.2 (1)° with the nitro and carboxyl-ate groups, respectively. In the crystal structure, the cations and anions are linked by inter-molecular N-H⋯O hydrogen bonds, forming a zigzag chain along the b axis.
authors.affiliation: School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People's Republic of China.
authors.forename: Guang-Yang
authors.initials: GY
authors.lastname: Hou
authors.forename: Li-Na
authors.initials: LN
authors.lastname: Zhou
authors.forename: Qiu-Xiang
authors.initials: QX
authors.lastname: Yin
authors.forename: Wei-Yi
authors.initials: WY
authors.lastname: Su
authors.forename: Hui-Lin
authors.initials: HL
authors.lastname: Mao