Some new nano-structure cadmium coordination compounds: Thermal analysis and usage as new precursors for preparation of cadmium oxide nanoparticle

Nowadays nanostructure compounds are of interest because of notable properties with respect to bulk ones [1]. Schiff bases are the most widely utilized chelating ligands in the development of coordination chemistry. Schiff base compounds containing an imine group are usually formed by the condensation reaction between aprimary amine and an active carbonyl. Because of the possible variety of the initial reactants for the synthesisof Schiff bases ligands, these compounds show a wide variety of chemical structures with differentphysicochemical properties [2].Synthesis andcharacterization of a new N2‐Schiff base ligand (obtained by condensation reaction between 1,3-propanediamine and methoxycinnammaldehyde) and itsCd(II) complexes are the purpose of this work. All compounds were synthesized in alcohol solutionand after isolation, characterized by FT-IR, NMR, UV–visible spectra and molar conductance. Based on spectral data, the general formula of CdLX2 (X = halide and/or pseudo-halide) was proposed for the cadmium complexes. Thenanostructure cadmium complexes were prepared by sonochemical method. Moreover, CdO nanoparticles were prepared by calcination ofcadmium halide complex at 500 ˚C and characterized by XRD, SEM.Thermal behaviors of allcompounds were studied by TG/DTG analysis data.Furthermore, antibacterial activities of compounds have been screened against various bacteria and fungi by disk diffusion method.