Acta Cryst. (2013). E69, o1159 [ doi:10.1107/S1600536813016814 ]
Abstract: The title compound, C13H9N3O3, crystallizes with two identical but differently oriented molecules in the asymmetric unit, the dihedral angle between the fused-ring systems of the two molecules being 64.39 (7)°. The two prop-2-ynyl chains are located on opposite sides of the molecule and are nearly perpendicular to the fused ring plane, as indicated by the C-N-C-C torsion angles in the range 106.0 (3)-113.4 (3)°. In the crystal, the two molecules are linked through C-HO hydrogen bonds into dimers, which are subsequently linked by further C-HO interactions, building a three-dimensional network.
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