title: 1,1'-(Butane-1,4-di-yl)diimidazolium dinitrate.
abstract: In the title compound, C(10)H(16)N(4) (2+)·2NO(3) (-), the organic cation is located around an inversion centre. The imidazolium ring forms a dihedral angle of 62.7 (3)° with the plane defined by the C atoms of the -(CH(2))(4)- aliphatic linker. Two anions bind to the cation via three-centre N-H⋯O hydrogen bonds and thus discrete hydrogen-bonded ion triples are formed. The nitrate is approximately coplanar with the imidazolium ring to which it binds.
authors.forename: Shouwen
authors.initials: S
authors.lastname: Jin
authors.forename: Daqi
authors.initials: D
authors.lastname: Wang