title: 2,2'-Ethyl-enediisoquinolinium dibromide dihydrate.
abstract: In the title compound, C(20)H(18)N(2) (2+)·2Br(-)·2H(2)O, the complete dication is generated by a crystallographic centre of symmetry. In the crystal, O-H⋯Br, C-H⋯Br and C-H⋯O hydrogen bonds and π-π stacking [shortest centroid-centroid separation = 3.657 (2) Å] help to establish the packing.
authors.affiliation: School of Chemistry and Biological Engineering, Changsha University of Science & Technology, Changsha 410004, People's Republic of China.
authors.forename: Jiang-Sheng
authors.initials: JS
authors.lastname: Li
authors.forename: Peng-Yu
authors.initials: PY
authors.lastname: Li