Acta Cryst. (2007). C63, o697-o700 [ doi:10.1107/S0108270107049931 ]
Abstract: The molecular dimensions of both 2-amino-6-(N-methylanilino)pyrimidin-4(3H)-one, C11H12N4O, (I), and 2-amino-6-(N-methylanilino)-5-nitropyrimidin-4(3H)-one, C11H11N5O3, (II), are consistent with considerable polarization of the molecular-electronic structures. The molecules of (I) are linked into a three-dimensional framework by a combination of one N-HN hydrogen bond, two independent N-HO hydrogen bonds and one C-H(arene) hydrogen bond. The molecules of (II) are linked into ribbons containing three types of edge-fused ring by the combination of two independent three-centre N-H(O)2 hydrogen bonds.
Formula: C11H12N4O and C11H11N5O3
Structure factor file (CIF format) (117.8 kbytes)
Structure factor file (CIF format) (71.4 kbytes)
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