title: 9-Amino-acridinium nitrate monohydrate.
abstract: The pyridine N atom of the cation in the title hydrated salt, C(13)H(11)N(2) (+)·NO(3) (-)·H(2)O, is protonated; the N atom of the NH(2) group shows a planar conformation. The former N atom is hydrogen bonded to a water mol-ecule. The amino group is involved in three N-H⋯O hydrogen bonds with two neighboring nitrate anions. The water mol-ecule is hydrogen bonded to two adjacent nitrate anions. In the crystal, this results in a layered network.
authors.forename: Mehrdad
authors.initials: M
authors.lastname: Pourayoubi
authors.forename: Hossein
authors.initials: H
authors.lastname: Eshtiagh-Hosseini
authors.forename: Somayyeh
authors.initials: S
authors.lastname: Sanaei Ataabadi
authors.forename: Teresa
authors.initials: T
authors.lastname: Mancilla Percino
authors.forename: Marco
authors.initials: M
authors.lastname: A Leyva Ramírez