Diaquabis(5-carboxy-2-propyl-1H-imidazole-4-carboxylato-κ2N3,O4)zinc(II) 3.5-hydrate

• Main Authors: Shi-Jie Li, Wen-Dong Song, Shi-Hong Li, Jing-Jing Dong, Jian-Bin Yan
• Format: Article
• Language: English
• Published: International Union of Crystallography 2010-09-01
• Series: Acta Crystallographica Section E
• Online Access: http://scripts.iucr.org/cgi-bin/paper?S1600536810031478

In the title complex, [Zn(C8H9N2O4)2(H2O)2]·3.5H2O, the ZnII ion is coordinated by two N,O-bidentate H2pimda ligands (H3pimda = 2-propyl-1H-imidazole-4,5-dicarboxylic acid) and two water molecules in a distorted octahedral environment. In the crystal structure, extensive intermolecular O—H...O and N—H...O hydrogen bonds stabilize the three-dimensional supramolecular network. Intramolecular O—H...O hydrogen bonds between the carboxyl groups are also observed. The propyl groups of the two H2pimda ligands are disordered each over two sites, with occupancy factors of 0.752 (5):0.248 (5) and 0.519 (7):0.481 (7). One of the water molecules is half-occupied.