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rac-2-Amino­pyridinium cis-2-carb­oxy­cyclo­hexane-1-carboxyl­ate

By Graham Smith and Urs D. Wermuth

Abstract

In the structure of the title compound, C5H7N2 +·C8H11O4 −, the cis anions associate through head-to-tail carb­oxy­lic acid–carboxyl O—H⋯O hydrogen bonds [graph set C(7)], forming chains which extend along c and are inter­linked through the carboxyl groups, forming cyclic R 2 2(8) associations with the pyridinium and an amine H-atom donor of the cation. Further amine–carboxyl N—H⋯O inter­actions form enlarged centrosymmetric rings [graph set R 4 4(18)] and extensions down b, giving a three-dimensional structure

Topics: Organic Papers
Publisher: International Union of Crystallography
OAI identifier: oai:pubmedcentral.nih.gov:3212294
Provided by: PubMed Central

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Citations

  1. A view of the hydrogen-bonding extensions in the structure down the b axis. rac-2-Aminopyridinium cis-2-carboxycyclohexane-1-carboxylate Crystal data
  2. (2011). Acta Cryst.
  3. (2010). CrysAlis PRO. Oxford Diffraction Ltd,
  4. Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) x y z Uiso*/Ueq

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