title: 2-(2-Fur-yl)-1H-imidazo[4,5-f][1,10]phenanthroline-3,7-diium dichloride monohydrate.
abstract: The organic cation of the title salt, C(17)H(12)N(4)O(2+)·2Cl(-)·H(2)O, is nearly planar, the dihedral angle between two pyridine rings being 2.53 (16)° and that between the pyridinum and furan rings being 4.17 (19)°. Mol-ecules are linked via N-H⋯O, N-H⋯Cl and O-H⋯Cl hydrogen bonds, forming a three-dimensional framework and π-π stacking inter-actions help to stabilize the crystal structure [the imidazole-pyridine and imidazole-benzene centroid-centroid distances are 3.501 (3) and 3.674 (3) Å; respectively].
authors.forename: Ming-Hua
authors.initials: MH
authors.lastname: Chen
authors.forename: Yun-Qian
authors.initials: YQ
authors.lastname: Zhang
authors.forename: Qian-Jiang
authors.initials: QJ
authors.lastname: Zhu
authors.forename: Sai-Feng
authors.initials: SF
authors.lastname: Xue
authors.forename: Zhu
authors.initials: Z
authors.lastname: Tao