Variable-temperature neutron diffraction studies of the short, strong hydrogen bonds in the crystal structure of pyridine-3,5-dicarboxylic acid

Cowan, J.A.; Howard, J.A.K.; McIntyre, G.J.; Lo, S.M.-F.; Williams, I.D.

doi:10.1107/S0108768105030077

Acta Crystallographica Section B
Acta Crystallographica
Section B STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS

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Figure 2
Cooperative intermolecular hydrogen bonding linking the molecules into planar sheets viewed down the c axis. The strong hydrogen bonds are indicated by heavy dashed lines and the weak C—H⋯O hydrogen bonds are indicated by the thin dashed lines. Symmetry codes: (i) $[ -x, -{1\over 2} +y, {1\over 2}-z]$ ; (ii) $[-1-x, {1\over 2}+y, {1\over 2}-z]$ ; (iii) 1+x, y, z.

STRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS

ISSN: 2052-5206

Volume 61| Part 6| November 2005| Pages 724-730

doi:10.1107/S0108768105030077

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