Synthesis, characterization and crystal structure of a binuclear cadmium iodide complex with a multi-N-donor oxazolidine ligand

Abstract

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. Cd 1 and Cd2 have distorted octahedral CdI2N 4 and tetrahedral CdI4 geometries, respectively.Weak intermolecular hydrogen bonds H⋯I and H⋯O stabilize the supramolecular network. © 2011 Verlag der Zeitschrift für Naturforschung, Tübingen.