Synthesis, spectral, thermal, crystal structure, Hirschfeld analysis of [bis(triamine)Cadimium(II)][Cadimum(IV)tetra-bromide] complexes and their thermolysis to CdO nanoparticles.
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.Graphical abstractORTEP for the complex 1.
Department of Chemistry, Science College, An-Najah National University, P.O. Box 7, Nablus, Palestine.
Ismail
I
Warad
Chemistry Department, Faculty of Science and Technology, Al-Quds University, P.O. Box 20002, Al-Quds, Palestine.
Fuad
F
Al-Rimawi
Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh, 11451 Saudi Arabia ; Department of Chemistry, Faculty of Science, Alexandria University, Ibrahimia, P.O. Box 426, Alexandria, 21321 Egypt.
Assem
A
Barakat
Elearning Center, An-Najah National University, P.O. Box 7, Nablus, Palestine.
Saida
S
Affouneh
Institution of Excellence, VijnanaBhavan, University of Mysore, Manasagangotri, Mysore, 570 006 India.
Naveen
N
Shivalingegowda
Department of Studies in Physics, University of Mysore, Manasagangotri, Mysore, 570 006 India.
Neartur Krishnappagowda
NK
Lokanath
Department of Chemistry, Science College, An-Najah National University, P.O. Box 7, Nablus, Palestine.
Ibrahim M
IM
Abu-Reidah
Cadmium(II) complexes; CdO nanoparticles; Triamine; XRD