3-Carboxyquinolin-1-ium-2-carboxylate monohydrate

Xing Wang, Chun Bo Liu, Yong Sheng Yan, Shen Tang Wang, Qing Zhang

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The title compound, C 11H 7NO 4·H 2O, contains a 3-carb-oxy-quinolin-1-ium-2-carboxyl-ate (qda) zwitterion and one water mol-ecule. In the crystal, pairs of N - H⋯O hydrogen bonds link the mol-ecules into inversion dimers, and these dimers are further connected by O - H⋯O hydrogen bonds into a three-dimensional supra-molecular architecture. In addition, π-π inter-actions occur between pyridine and benzene rings from different qda ligands [centroid-centroid distance = 3.749 (1) Å] and the dihedral angles of the -CO 2H and -CO 2 groups to the quinoline system are 8.47 (3) and 88.16 (6)°, respectively.

Original languageEnglish
Pages (from-to)o829
JournalActa Crystallographica Section E: Structure Reports Online
Volume68
Issue number3
DOIs
StatePublished - Mar 2012
Externally publishedYes

Keywords

  • data-to-parameter ratio = 10.8
  • mean σ(C-C) = 0.002 Å
  • R factor = 0.036
  • single-crystal X-ray study
  • T = 153 K
  • wR factor = 0.101

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