(Quinoline-2-carboxyl­ato-κO)(quinoline-2-carb­oxy­lic acid-κO)bis­(quinoline-2-carb­oxy­lic acid-κ2
               N,O)potassium

doi:10.1107/S1600536810027510

Acta Crystallogr Sect E Struct Rep Online. 2010 August 1; 66(Pt 8): m948.

Published online 2010 July 17. doi: 10.1107/S1600536810027510

PMCID: PMC3007487

(Quinoline-2-carboxylato-κO)(quinoline-2-carboxylic acid-κO)bis(quinoline-2-carboxylic acid-κ² N,O)potassium

Seik Weng Ng^a^*

^aDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia

Correspondence e-mail: seikweng/at/um.edu.my

Received July 10, 2010; Accepted July 11, 2010.

This is an open-access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.

Abstract

The K atom in the title complex, [K(C₁₀H₆NO₂)(C₁₀H₇NO₂)₃], lies on a twofold rotation axis that relates one N,O-chelating quinoline-2-carboxylic acid to the other; their N and O atoms are cis to each other in the distorted octahedral coordination geometry. The K atom is also coordinated by another monodentate quinoline-2-carboxylic acid; the acid is disordered with respect to a monodentate quinoline-2-carboxylate anion; the acid and anion are linked by an O—H (...)

O hydrogen bond. An O—H (...)

N hydrogen bond links adjacent molecules into a linear chain structure along the a axis.

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