Di-μ-aqua-bis[aqua(5-carboxylato-1H-1,2,3-triazole-4-carboxylic acid-κ2N3,O4)lithium]

• Main Authors: Wojciech Starosta, Janusz Leciejewicz
• Format: Article
• Language: English
• Published: International Union of Crystallography 2013-09-01
• Series: Acta Crystallographica Section E
• Online Access: http://scripts.iucr.org/cgi-bin/paper?S1600536813023167

The crystal structure of the title compound, [Li2(C4H2N3O4)2(H2O)4], contains centrosymmetric dinuclear molecules in which two LiI ions are bridged by two water O atoms. The metal ion is coordinated by one N,O-bidentate ligand and three water O atoms (one of them is symmetry generated), with one of the bridging water O atoms in the apical position of a distorted square pyramid. The carboxylate group that participates in coordination to the metal ion remains protonated; the other is deprotonated and coordination inactive. An intramolecular O—H...O hydrogen bond between carboxylate groups is observed. In the crystal, dimers are linked by O—H...O, O—H...N and N—H...O hydrogen bonds, generating a three-dimensional network.