Journal of Chemical Crystallography

, Volume 34, Issue 1, pp 51–55

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

Article

DOI: 10.1023/B:JOCC.0000014688.79954.ca

Cite this article as:
Dobrzyńska, D. & Jerzykiewicz, L.B. Journal of Chemical Crystallography (2004) 34: 51. doi:10.1023/B:JOCC.0000014688.79954.ca

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-carboxylatetautomericdimers

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