title: 1,3-Diprop-2-ynyl-1H-imidazol-3-ium bromide.
abstract: In the title salt, C(9)H(9)N(2) (+)·Br(-), the ethynyl groups are nearly anti-parallel to each other [the angle between the two ethynyl groups is179.7 (2)°]. No classical hydrogen bonds or π-π inter-actions are observed. The mol-ecules are linked by C-H⋯Br hydrogen bonds. The bromide anions are involved in inter-actions with three H atoms.
authors.forename: Hui
authors.initials: H
authors.lastname: Li
authors.forename: Lin-Yu
authors.initials: LY
authors.lastname: Jin
authors.forename: Ruo-Jie
authors.initials: RJ
authors.lastname: Tao