Hexaaquabis(μ-pyridine-2,6-dicarboxylato-O,N,O′:O)dicadmium(II)-pyridine-2,6-dicarboxylic acid (1/2)

Abstract

In the structure of the title compound, [Cd2(C7H3NO4)2(H2O)6]·2C7H5NO4, a centrosymmetric dinuclear CdII complex and free pyridine-2,6-di­carboxyl­ic acid are present in a 1:2 ratio. Within the dinuclear complex, two Cd2+ ions are bridged by two carboxyl­ate O atoms. Each Cd2+ ion is coordinated by one N and three O atoms of the pyridine-2,6-di­carboxyl­ato ligands and three water O atoms, resulting in a distorted pentagonal bipyramidal coordination. The crystal structure is stabilized by hydrogen bonds involving all the H atoms of the water ligands.