Journal of Chemical Crystallography

, Volume 34, Issue 1, pp 51–55 | Cite as

Crystal structure of quinoline-2-carboxylic acid ⋅ quinolinium-2-carboxylate

Article

Abstract

Quinoline-2-carboxylic acid (quinaldic acid), C10H7NO2, crystallizes in the monoclinic space group P21/c, a =9.724(1) Å, b = 5.937(1) Å, c = 27.545(2) Å, β = 90.15(1)°, z = 4, and occurs in the crystal in two tautomeric forms: the neutral molecule and the zwitterion, with molecular ratio 1:1. The compound can be named quinoline-2-carboxylic acid ⋅ quinolinium-2-carboxylate. The crystal structure is built up of tautomeric pairs consisting of C9H6NCOOH and C9H6NH+COO moieties, held up together by hydrogen bonds.

Quinoline-2-carboxylic acid ⋅ quinolinium-2-carboxylate tautomeric dimers 

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Copyright information

© Plenum Publishing Corporation 2004

Authors and Affiliations

  1. 1.Institute of Inorganic Chemistry and Metallurgy of Rare Elements, Wrocław University of TechnologyWrocławPoland
  2. 2.Faculty of ChemistryUniversity of WrocławJoliot-CuriePoland

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