Three-dimensional hydrogen-bonded structures in the 1:1 proton-transfer compounds of l-tartaric acid with the associative-group monosubstituted pyridines 3-amino­pyridine, 3-carboxy­pyridine (nicotinic acid) and 2-carboxy­pyridine (picolinic acid)

Smith, G.; Wermuth, U.D.

doi:10.1107/S0108270109049154

Acta Crystallographica Section C
Acta Crystallographica
Section C STRUCTURAL CHEMISTRY

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Figure 8
A view of the hydrogen-bonded two-dimensional chains of hydrogen tartrate anions in (III)

and their extension into two-dimensional sheets via the solvent water molecule. H atoms not involved in hydrogen bonding and the 2-carboxypyridinium cations have been omitted for clarity. Hydrogen bonds are shown as dashed lines. (See Table 3

for symmetry codes.)

STRUCTURAL
CHEMISTRY

ISSN: 2053-2296

Volume 66| Part 1| December 2010| Pages o5-o10

doi:10.1107/S0108270109049154

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