5-Amino-1-naphthol

Abstract

In the title compound, C10H9NO, the amino and the hydr-oxy groups act both as a single donor and a single acceptor in hydrogen bonding. In the crystal, mol-ecules are connected via chains of inter-molecular ⋯N- H⋯O- H⋯ inter-actions, forming a two-dimensional polymeric structure resembling the hydrogen-bonded mol-ecular assembly found in the crystal structure of naphthalene-1,5-diol. Within this layer, mol-ecules related by a translation along the a axis are arranged into slipped stacks via π-π stacking inter-actions [inter-planar distance = 3.450 (4) Å]. The amino N atom shows sp 3 hybridization and the two attached H atoms are located on the same side of the aromatic ring.