Pyrazolyl coordination polymers of cadmium(II)

The coordination polymers [Cd(μ-Cl)2(HPz)2]n (1) and [Cd(μ-1,3-SCN)2(HPz)2]n (2) (HPz = pyrazole) have been prepared and characterized by elemental analysis, infrared spectroscopy, and single crystal X-ray diffraction. Both complexes exhibited chain structures made by linear arrays of Cd(II) bridged by chloro (1) or inversely related 1,3-SCN groups (2) and the pyrazole ligands at the apical sites. Intermolecular hydrogen bonds and another non-covalent interactions are responsible for the self-assembly of linear chains into 2D networks.