title: 2-Fluoro-N'-[(2-hydroxynaphthalen-1-yl)methylidene]benzohydrazide.
abstract: In the title mol-ecule, C(18)H(13)FN(2)O(2), the hy-droxy group is involved in an intra-molecular O-H⋯N hydrogen bond. The naphthyl ring system and the benzene ring form a dihedral angle of 31.0 (2)°. In the crystal, N-H⋯O hydrogen bonds link the mol-ecules into chains propagating in [101].
authors.affiliation: Hebei Key Laboratory of Bioinorganic Chemistry, College of Sciences, Agricultural University of Hebei, Baoding 071001,  People's Republic of China.
authors.forename: Dong-Yue
authors.initials: DY
authors.lastname: Wang
authors.forename: Xu-Feng
authors.initials: XF
authors.lastname: Meng
authors.forename: Jing-Jun
authors.initials: JJ
authors.lastname: Ma