Date Published: May 01, 2011
Publisher: International Union of Crystallography
Author(s): Huai-Xia Yang, Xiaoli Zhou, Guanghua Jin, Xiang-Ru Meng.
The complex molecule of the title compound, [Mn(C13H10N4O8)(H2O)2] or [Mn(H4pbidc)(H2O)2] (H6pbidc = 2,2′-(propane-1,3-diyl)bis(1H-imidazole-4,5-dicarboxylic acid), has 2 symmetry with the twofold rotation axis running through the Mn2+ cation and the central C atom of the propanediyl unit. The cation is six-coordinated by two N atoms and two O atoms from one H4pbidc2− anion and two water O atoms in a considerably distorted octahedral coordination. In the crystal, adjacent molecules are linked through O—H⋯O and N—H⋯O hydrogen bonds into a three-dimensional network.
For background to complexes based on 1H-imidazole-4,5-dicarboxylic acid, see: Ghosh et al. (2009 ▶); Liu et al. (2008 ▶); Sun & Yang (2007 ▶).