title: Crystal structure of 3-amino-1-(4-hy-droxy-phen-yl)-1H-benzo[f]chromene-2-carbo-nitrile.
abstract: In the title compound, C20H14N2O2, the hy-droxy-benzene ring is almost perpendicular to the mean plane of the naphthalene ring system, making a dihedral angle of 85.56 (4)°. The 4H-pyran ring fused with the naphthalene ring system has a flattened boat conformation. In the crystal, O-H⋯N and N-H⋯O hydrogen bonds link the mol-ecules into a supra-molecular layer in the bc plane; N-H⋯π inter-actions also contribute to this arrangement. The layers are linked by weak by C-H⋯π and π-π [inter-centroid separation = 3.8713 (7) Å] inter-actions.
authors.affiliation: Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey.
authors.forename: Mehmet
authors.initials: M
authors.lastname: Akkurt
authors.affiliation: School of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, England.
authors.forename: Peter N
authors.initials: PN
authors.lastname: Horton
authors.affiliation: Chemistry Department, Faculty of Science, Sohag University, 82524 Sohag, Egypt.
authors.forename: Sabry H H
authors.initials: SH
authors.lastname: Younes
authors.affiliation: Chemistry and Environmental Division, Manchester Metropolitan University, Manchester M1 5GD, England ; Chemistry Department, Faculty of Science, Minia University, 61519 El-Minia, Egypt.
authors.forename: Shaaban K
authors.initials: SK
authors.lastname: Mohamed
authors.affiliation: Kirkuk University, College of Science, Department of Chemistry, Kirkuk, Iraq.
authors.forename: Mustafa R
authors.initials: MR
authors.lastname: Albayati
keywords: N—H⋯π(arene) inter­actions; amino­chromenes; crystal structure; hydrogen bonding