Phenylhydrazinium (6-carboxypyridine-2-carboxylato)(pyridine-2,6-dicarboxylato)cobaltate(II)-pyridine-2,6-dicarboxylic acid-water (1/1/3)

Acta Crystallographica Section E

Structure Reports Online

Volume 66, Part 12 (December 2010)

metal-organic compounds

si2309 scheme

Acta Cryst. (2010). E66, m1643-m1644 [ doi:10.1107/S1600536810048191 ]

Phenylhydrazinium (6-carboxypyridine-2-carboxylato)(pyridine-2,6-dicarboxylato)cobaltate(II)-pyridine-2,6-dicarboxylic acid-water (1/1/3)

C. Yuste, M. Ramos Silva, M. Ghadermazi, F. Feizi and E. Motieiyan

Abstract: The asymmetric unit of the title compound, (C₆H₉N₂)[Co(C₇H₃NO₄)(C₇H₄NO₄)]·C₇H₅NO₄·3H₂O, contains one (6-carboxypyridine-2-carboxylato)(pyridine-2,6-dicarboxylato)cobaltate(II) anion, one phenylhydrazinium cation, one pyridine-2,6-dicarboxylic acid molecule and three uncoordinated water molecules, part of which are disordered. The Co^II ion is coordinated by a pyridine-2,6-dicarboxylate ion and a 6-carboxypyridine-2-carboxylate ligand almost perpendicular to each other [the angle between the least-squares planes is 87.38 (4)°] and is surrounded by two O atoms and two N atoms in the equatorial plane and two O atoms in axial positions, resulting in a distorted octahedral coordination geometry. There is an extensive three-dimensional network of O-HO and N-HO hydrogen bonds, which link the components.