Acta Crystallographica Section E (Jan 2011)

4-Hydroxypyridinium-3-sulfonate

  • Seik Weng Ng,
  • Shan Gao,
  • Zhi-Biao Zhu

DOI
https://doi.org/10.1107/S1600536810049603
Journal volume & issue
Vol. 67, no. 1
pp. o11 – o11

Abstract

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The reaction of 4-hydroxypyridine and oleum produces 4-hydroxypyridinium-3-sulfonate, C5H5NO4S, which shows delocalized bonds in the six-membered ring. In the crystal, adjacent zwitterions are linked by N—H...O and O—H...O hydrogen bonds into a layer motif. The crystal studied was a racemic twin.