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Energy-minimization studies of the title compound, C15H13N2O6+.NO3-.H2O, suggest that the stable conformation of the molecule should be that with the carboxyl groups coplanar with the pyridine ring. Isolated in the solid as a pyridinium nitrate monohydrate, the significant rotation of these carboxyl groups from coplanarity with the aromatic ring may be attributed to networks of hydrogen bonding.

Supporting information

cif

Crystallographic Information File (CIF)
Contains datablocks global, holt1

CCDC reference: 128407

-1
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