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Acta Cryst. (2008). E64, o1677 [ doi:10.1107/S1600536808024240 ]
Abstract: In the title compound, C8H6N2O2, intermolecular N-H
O hydrogen bonds involving the amine and carbonyl groups create centrosymmetric dimers between adjacent nearly coplanar molecules. These dimers are further connected by weak N-HO hydrogen bonds, forming a two-dimensional network. Molecules are packed in the crystal structure with adjacent benzene and pyrimidine rings approximately coplanar; the centroid-centroid separation is 3.863 Å and the dihedral angle between the mean planes is 0.64°, indicating the presence of weak intermolecular face-to-face ![[pi]](/logos/entities/pi_rmgif.gif)
- stacking interactions.
Online 6 August 2008
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