title: 5,6-Dioxo-1,10-phenanthrolin-1-ium chloride.
abstract: The title compound, C(12)H(7)N(2)O(2) (+)·Cl(-), is isostructural with its bromide analogue. The compound exhibits a layered structure in which all atoms lie on a crystallographic mirror plane. N(+)-H⋯Cl(-) hydrogen bonds, C-H⋯O and C-H⋯Cl(-) contacts are formed within each layer. The perpendicular separation between the layers is 3.141 (1) Å.
authors.forename: Cedric
authors.initials: C
authors.lastname: Borel
authors.forename: Andrew D
authors.initials: AD
authors.lastname: Bond