Diaquabis(5-carboxy-2-ethyl-1H-imidazole-4-carboxylato-κ2N3,O4)cobalt(II) trihydrate

• Main Authors: Dong-Liang Miao, Shi-Jie Li, Wen-Dong Song, Shao-Wei Tong, Seik Weng Ng
• Format: Article
• Language: English
• Published: International Union of Crystallography 2012-04-01
• Series: Acta Crystallographica Section E
• Online Access: http://scripts.iucr.org/cgi-bin/paper?S1600536812008902

In the title compound, [Co(C7H7N2O4)2(H2O)2]·3H2O, the CoII cation, located on an inversion center, is N,O-chelated by two 5-carboxy-2-ethyl-1H-imidazole-4-carboxylate anions and further coordinated by two water molecules in a distorted octahedral geometry. Only one carboxy group of the anion is deprotonated, and the two carboxyl groups of the same anion are linked via an intramolecular O—H...O hydrogen bond. One of the lattice water molecules is located on an inversion center, its H atom equally disordered over two positions. One of H atoms of another lattice water molecules is also equally disordered over two sites. Water H atoms and the amino H atom all are involved in an intermolecular hydrogen-bonded network in the crystal.