Background: The coordination chemistry of cadmium(II) with diamine ligands is of particular interest. The most
common structure around cadmium(II) center in their complexes is tetrahedral, that is due the octet rule obeyed.
Nevertheless, five and six-coordinated complexes are also well known. Now a day, many cadmium(II) complexes with
chelate ligands were synthesized for their structural or applications properties. Antibacterial activities and DNA binding
affinity of this class of cadmium complexes have attracted considerable interest.
Results: Cadmium(II) complexes in dicationic form with general formula [Cd(dien)2]CdBr4 complex 1 (dien = diethylenetriamine)
and [Cd(dipn)2]CdBr4 complex 2 (dipn = diproylenetriamine) were prepared and elucidated there
chemical structures by elemental analysis, UV–Vis, IR, TG and NMR, additionally complex 1 structure was solved by
X-ray diffraction study. The Cd(II) cation is located in a slightly distorted octahedral geometry while Cd(IV) anion is
in tetrahedral geometry. High stability of the synthesized complexes confirmed by TG. Thermolysis of complex 1
revealed the formation of pure cubic nanoparticles CdO which was deduced by spectral analysis. The average size of
CdO nanoparticles was found to be ~60 nm.
Conclusions: Two new Cd(II) complexes of general formula [Cd(N3)2]CdBr4 were made available. The structure of
[Cd(dien)2]CdBr4 was confirmed by X-ray diffraction. Thermal, electro and spectral analysis were also investigated
in this study. The direct thermolysis of such complexes formed a cubic CdO regular spherical nanoparticle with
the ~60 nm average particle size.
Keywords: Cadmium(II) complexes, Triamine, XRD, CdO nanoparticles

Title

Chemistry Central Journal

Publisher

Springer International Publishing

Publisher Country

Germany

Indexing

Scopus

Impact Factor

None

Publication Type

Prtinted only

Volume

10

Year

2016

Pages

1-11