title: Octane-1,8-diyldipyridinium dibromide dihydrate.
abstract: The asymmetric unit of the title compound, C(18)H(26)N(2) (2+)·2Br(-)·2H(2)O, consists of one-half of the organic cation, one Br(-) anion and one water mol-ecule. The organic cation is situated on a centre of inversion. The dihedral angle between the pyridine ring and the plane of the central linkage is 59.3 (1)°. The cations, anions and water mol-ecules are linked via O-H⋯Br, C-H⋯Br and C-H⋯O hydrogen bonds, forming a three-dimensional framework.
authors.forename: Xin
authors.initials: X
authors.lastname: Xiao
authors.forename: Ping-Yue
authors.initials: PY
authors.lastname: Jiang
authors.forename: Yun-Qian
authors.initials: YQ
authors.lastname: Zhang
authors.forename: Sai-Feng
authors.initials: SF
authors.lastname: Xue
authors.forename: Qian-Jiang
authors.initials: QJ
authors.lastname: Zhu