Coordination binding modes for polymeric cadmium dicarboxylate hydrate complexes

Single crystal X-ray crystal diffraction, IR and TGA-DTA data and searches in the Cambridge Structural Database (CSD) have been used to analyze coordi nation binding modes of Cd(II) in dicarboxylate complexes with anions of di fferent length. The results, discussed in this paper, show that Cd(II) pres ents a range of coordination geometries. Six, seven and eight coordination with different degrees of departure from regular polyhedra are observed. Th e length of the ions influences the availability of donor oxygens and induc es bidentate, six or four member chelating rings, and monodentate binding, which produces polymerization of different dimensionality.