title: 5,6-Dioxo-1,10-phenanthrolin-1-ium nitrate.
abstract: In the title salt, C(12)H(7)N(2)O(2) (+)·NO(3) (-), the monoprotonated cation is connected to the nitrate anion by a hydrogen bond. Weak C-H⋯O hydrogen bonds hold the planar cations together in a layer structure.
authors.affiliation: School of Chemistry, University College of Science, University of Tehran, Tehran, Iran.
authors.forename: Alireza
authors.initials: A
authors.lastname: Abbasi
authors.forename: Alireza
authors.initials: A
authors.lastname: Badiei
authors.forename: Sara
authors.initials: S
authors.lastname: Tarighi