Crystal structure of 3-amino-1-(4-methoxyphenyl)-1H-benzo[f]chromene-2-carbonitrile


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Mohamed S. K. , Horton P. N. , AKKURT M. , Younes S. H. H. , Albayati M. R.

ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS, vol.71, 2015 (Journal Indexed in ESCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 71
  • Publication Date: 2015
  • Doi Number: 10.1107/s2056989015011020
  • Title of Journal : ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS

Abstract

In the title compound, C21H16N2O2, the methoxybenzene ring is almost perpendicular to the mean plane of the naphthalene ring system, making a dihedral angle of 83.62 (5)degrees. The 4H-pyran ring fused with the naphthalene ring system is almost planar [maximum deviation = 0.033 (1) angstrom]. In the crystal, molecules are linked into inversion dimers by pairs of N-H center dot center dot center dot N hydrogen bonds. N-H center dot center dot center dot O hydrogen bonds connect the dimers, forming a helical supramolecular chain along the a-axis direction. The crystal packing also features C-H center dot center dot center dot pi interactions.