Acta Cryst. (2013). E69, o401 [ doi:10.1107/S1600536813004376 ]
Abstract: In the title compound, C20H14N2O, the phenyl ring is almost normal to the naphthalene ring system with a dihedral angle of 86.72 (9)°. The 4H-pyran ring fused with the naphthalene ring system has a boat conformation. In the crystal, molecules are linked into a helical supramolecular chain along the b axis via N-HN hydrogen bonds. The chains are consolidated into a three-dimensional architecture by C-H interactions.
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