title: 2-Amino-4-(4-bromo-phen-yl)-6-meth-oxy-4H-benzo[h]chromene-3-carbonitrile.
abstract: In the title compound, C21H15BrN2O2, the 14 non-H atoms of the 4H-benzo[h]chromene fused-ring system are approximately coplanar (r.m.s. deviation = 0.129 Å). Within this system, the 4H-pyran ring adopts a flattened half-chair conformation with the methine C atom lying 0.281 (4) Å above the plane of the remaining atoms (r.m.s. deviation = 0.0446 Å). The bromo-benzene ring is almost perpendicular to the fused-ring system [dihedral angle = 85.34 (13)°]. In the crystal, supra-molecular layers parallel to (101) are sustained by amine-cyano N-H⋯N and amine-meth-oxy N-H⋯O hydrogen bonds. The layers stack with inter-actions of the type (bromo-benzene)C-H⋯π(outer-C6 ring of the fused-ring system) connecting them.
authors: Chemistry Department, Faculty of Science, King Khalid University, Abha 61413, PO Box 9004, Saudi Arabia.
authors: Al-Anood M
authors: AA
authors: Al-Dies
authors: Ahmed M
authors: AM
authors: El-Agrody
authors: Mohamed A
authors: MA
authors: Al-Omar
authors: Abd El-Galil E
authors: Ael-G
authors: Amr
authors: Seik Weng
authors: SW
authors: Ng
authors: Edward R T
authors: ER
authors: Tiekink
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