Sonochemical syntheses of a nanoparticles cadmium(II) supramolecule as a precursor for the synthesis of cadmium(II) oxide nanoparticles.

Nanoparticles of a three-dimensional supramolecular Cd(II) compound, [Cd(L)(2)(H(2)O)(2)] (1), (L(-)=1H-1,2,4-triazole-3-carboxylate), have been synthesized by a sonochemical process and characterized by scanning electron microscopy, X-ray powder diffraction, IR spectroscopy and elemental analyses. The thermal stability of compound 1 in both its bulk and nano-size has been studied by thermal gravimetric (TG) and differential thermal analyses (DTA) and compared with each other. Concentration of initial reagents effects on size and morphology of nano-structured compound 1, have been studied. Calcination of the single crystals and nano-sized compound 1 at 650°C under air atmosphere yields CdO nanoparticles.