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The 2-amino-5-nitropyridine molecule of the title complex, C5H5N3O2.C5H4N2O3, is planar while the nitro group in 3-nitro-2-pyridone is tilted away from the mean plane by 27.9 (3)°. The C—C bond distance between the substituted atoms in the pyridone ring, 1.439 (3) Å, is slightly lengthened due to the electron-withdrawing effect of the adjacent carbonyl and nitro groups. The molecules are linked into centrosymmetric tetra­mers which are stacked in layers along the c axis. The layers are held together by weak C—H...O hydrogen bonds and van der Waals interactions.

Supporting information

cif

Crystallographic Information File (CIF)
Contains datablocks global, LRSA0235

fcf

Structure factor file (CIF format)
Contains datablock shelxl

CCDC reference: 129059

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