Synthesis, Characterization and Crystal Structure of a Binuclear Cadmium Iodide Complex with a Multi-N-donor Oxazolidine Ligand

The ligand, 2-(2-(pyridin-2-yl)oxazolidin-3-yl)-N-(pyridin-2-ylmethylene)ethanamine, POPME, was prepared via microwave-supported Schiff base and oxazolidination reactions. The cadmium iodide complex [Cd2(POPME)(μ-I)2I2] was prepared and identified by elemental analysis, IR, Raman and 1H and 13C NMR spectroscopy and single-crystal X-ray diffraction. In the crystal structure two Cd(II) ions with coordination numbers four and six are bridged by two iodide anions. Cd1 and Cd2 have distorted octahedral CdI2N4 and tetrahedral CdI4 geometries, respectively. Weak intermolecular hydrogen bonds H· · · I and H· · ·O stabilize the supramolecular network.