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organic compounds
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.
O hydrogen bonds and van der Waals interactions.
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