Thermolysis preparation of cadmium(II) oxide nanoparticles from a new three-dimensional cadmium(II) supramolecular compound

The reaction of cadmium(II) chloride and 4-pyridine carboxylic acid (4-Hpyc) produces a new threedimensional supramolecular compound [Cd(4-pyc)(2)(H2O)4] (n) (1). Compound 1 is characterized by IR spectroscopy and elemental analyses. The single crystal X-ray data show an infinite three-dimensional structure formed by the hydrogen bonding and pi-pi stacking interactions. The CdO nanoparticles are obtained by direct calcination at 400A degrees C, 500A degrees C and 600A degrees C in the air atmosphere as well as by thermolysis in oleic acid at 200A degrees C. The obtained cadmium(II) oxide nanoparticles are characterized by X-ray diffraction and scanning electron microscopy. This study demonstrates another potential application of cadmium(II) supramolecular compounds in the preparation of nanoscale cadmium(II) oxide materials with a specific size and morphologies.