title: (E)-1-[(2-Hy-droxy-1-naphth-yl)methyl-idene-amino]-imidazolidine-2,4-dione.
abstract: The title compound, C(14)H(11)N(3)O(3), adopts an E or trans configuration with respect to the C=N bond. In the mol-ecule there is an intra-molecular O-H⋯N hydrogen bond involving the hy-droxy substituent at the 2-positon of the naphthalene ring and the adjacent methyl-ene-amino N atom. The mol-ecule is roughly planar, the dihedral angle between the naphthalene and imidazolidine-2,4-dione mean planes being 8.4 (1)°. In the crystal, pairs of N-H⋯O hydrogen bonds link mol-ecules into inversion dimers. These dimers are futher linked via C-H⋯O inter-actions, forming a three-dimensional network.
authors.affiliation: Department of Chemistry, Fuyang Normal College, Fuyang Anhui 236041, People's Republic of China.
authors.forename: Liang-Quan
authors.initials: LQ
authors.lastname: Sheng
authors.forename: Hua-Jie
authors.initials: HJ
authors.lastname: Xu
authors.forename: Na-Na
authors.initials: NN
authors.lastname: Du
authors.forename: Xue-Yue
authors.initials: XY
authors.lastname: Jiang