Acta Cryst. (2004). E60, o320-o321  [ doi:10.1107/S1600536804001928 ]

Diethyl 1H-pyrazole-3,5-dicarboxylate

C. Yin, F. Huo, F. Gao and P. Yang

Abstract: The crystal structure of the title compound, C₉H₁₂N₂O₄, has been determined in the monoclinic space group P2₁/c. There are two molecules in the asymmetric unit and the two pyrazole rings are almost coplanar. The two molecules have different conformations and are connected into a dimer via intermolecular N-HO and N-HN hydrogen bonds.

Online 7 February 2004

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