Abstract

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 π-π stacking interactions. The CdO nanoparticles are obtained by direct calcination at 400°C, 500°C and 600°C in the air atmosphere as well as by thermolysis in oleic acid at 200°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.

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