Acta Cryst. (2012). E68, o2666
[ doi:10.1107/S1600536812034095 ]

4-Chloro-1H-pyrrolo[2,3-d]pyrimidine

S.-L. Dong and X. Cheng

Abstract: The title compound, C₆H₄ClN₃, is essentially planar with the pyrrole and pyrimidine rings inclined to one another by 0.79 (15)°. In the crystal, molecules are connected via pairs of N-HN hydrogen bonds, forming inversion dimers. These dimers are linked via C-HN interactions, forming a two-dimensional network parallel to (10-1).

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