Date Published: May 01, 2012
Publisher: International Union of Crystallography
Author(s): Katarzyna Łuczyńska-Szymczak, Wojciech Starosta, Janusz Leciejewicz.
The title compound, [Mg(C5H3N2O4)2(H2O)2], consists of centrosymmetric neutral monomers in which two O,O′-bidentate imidazolinium-4,5-dicarboxylate ligands are bonded to the MgII ion. One of the carboxyl protons is transferred to the N atom of the imidazole ring. The octahedral metal-ion coordination is completed by two trans water O atoms. In the crystal, molecules are linked by N—H⋯(O,O) and O—H⋯O hydrogen bonds.
For the crystal structures of two CaII complexes with imidazole-4,5-dicarboxylate and aqua ligands, see: Starosta et al. (2006 ▶) and for the structure of a BaII complex, see: Starosta et al. (2007 ▶).