Acta Cryst. (2003). E59, o511-o513  [ doi:10.1107/S1600536803004999 ]

4-(2-Pyridyl)-1H,2H-pyrido[1,2-c]pyrimidine-1,3-dione

I. Wolska, F. Herold and M. Maj

Abstract: The maximum deviation from the mean plane of the pyridopyrimidine skeleton of the title compound, C₁₃H₉N₃O₂, indicates a reasonably planar system. The planar pyridyl ring is twisted with respect to the pyrido[1,2-c]pyrimidine-1,3-dione fragment. The molecules form centrosymmetric dimers via intermolecular N-HO hydrogen bonds. Short intra- and intermolecular C-HO and C-HN contacts are observed.

Online 31 March 2003

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