title: (E)-4-{2-[(2-Hy-droxy-naphthalen-1-yl)methyl-idene]hydrazinecarbon-yl}pyridinium nitrate.
abstract: The title compound, C(17)H(14)N(3)O(2) (+)·NO(3) (-), is an aroylhydrazone-based material consisting of a 4-(hydrazinecarbon-yl)pyridinium cation and a nitrate anion. In the cation, the dihedral angle between the benzene ring and the naphthalene ring system is 2.20 (7)°. In the cation, the configuration about the C=N bond is E. There is an intra-molecular O-H⋯N hydrogen bond in the cation, and the supra-molecular structure is stabilized by inter-molecular N-H⋯O hydrogen bonds and weak C-H⋯O contacts between the cation and the nitrate anion.
authors.forename: Rahman
authors.initials: R
authors.lastname: Bikas
authors.forename: Hassan
authors.initials: H
authors.lastname: Hosseini Monfared
authors.forename: Tadeusz
authors.initials: T
authors.lastname: Lis
authors.forename: Milosz
authors.initials: M
authors.lastname: Siczek