Crystal structure of 3-amino-1-(4-meth-oxy-phen-yl)-1H-benzo[f]chromene-2-carbo-nitrile.
In the title compound, C21H16N2O2, the meth-oxy-benzene ring is almost perpendicular to the mean plane of the naphthalene ring system, making a dihedral angle of 83.62 (5)°. The 4H-pyran ring fused with the naphthalene ring system is almost planar [maximum deviation = 0.033 (1) Å]. In the crystal, mol-ecules are linked into inversion dimers by pairs of N-H⋯N hydrogen bonds. N-H⋯O hydrogen bonds connect the dimers, forming a helical supra-molecular chain along the a-axis direction. The crystal packing also features C-H⋯π inter-actions.
Chemistry and Environmental Division, Manchester Metropolitan University, Manchester M1 5GD, England ; Chemistry Department, Faculty of Science, Minia University, 61519 El-Minia, Egypt.
Shaaban K
SK
Mohamed
School of Chemistry, University of Southampton, Highfield, Southampton, SO17 1BJ, England.
Peter N
PN
Horton
Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey.
Mehmet
M
Akkurt
Chemistry Department, Faculty of Science, Sohag University, 82524 Sohag, Egypt.
Sabry H H
SH
Younes
Kirkuk University, College of Science, Department of Chemistry, Kirkuk, Iraq.
Mustafa R
MR
Albayati
C—H⋯π inter­actions; benzochromene; chromene compounds; crystal structure; hydrogen bonding