El-Asmy, A.A., Al-Ansi, T.Y., Amin, R.R., El-Shahat, M.F., Structural studies on cadmium(II), Co(II), Cu(II) Ni(II) and Zn(II) complexes of 1-malonyl bis(4-phenyl- thiosemi-carbazide. Transition Metal Chemistry, 15, 12- 15.

has been cited by the following article:

• TITLE: Kinetic parameters and thermal decomposition for Novel 1,1-Malonyl-bis(4-p-Chlorophenylthiosemicarbazide) and Cu(II), Co(II), Zn(II) and Sn(II) complexes(H4pClMaTS) synthesized by electrochemical method

  AUTHORS: Ragab R. Amin, Yamany B. Yamany, Mohamed Abo-Aly, Ali M. Hassan

  KEYWORDS: Metal(II) Complexes; Electrochemical; Thermogravimetric; Bis-Thiosemicarbazide

  JOURNAL NAME: Natural Science, Vol.3 No.9, September 30, 2011

  ABSTRACT: Anodic oxidation of Co, Cu, Zn, and Sn metals in an acetone solution of 1,1-malonayl-bis(4-p- Chlorophenylthiosemicarbazide) yields complexes of composition with general formula [Co2(pClMaTS)(H2O)6]·2H2O, [Cu2(pClMaTS)(H2O)6], [Zn2(pClMaTS)(H2O)6] and [Sn2(pClMaTS)(H2O)6]·2H2O. Chelation was investigated based on elemental analysis, conductivity, magnetic moment, spectral (UV-Vis, IR, Raman, 1HNMR, mass), thermal, and ESR studies. The Raman and infrared spectral studies suggests the tridentate behavior of the ligand from each tail. Since the ligand has two thiose- micarbazide groups, it may acts in an SNO tridentate fashion from each side with one of the two metal ions forming a polynuclear complex coordinating through both of the lone pair of electrons the enolic oxygen of the carbonyl group (C=O), the azomethine nitrogen (C=N) and the thioenol form of the thiocarbonyl group (C=S). The differential thermogravimetric analysis (DTG) curves were used to study the decomposition steps of the isolated complexes using Horowitz-Metzger (HM) and Coats-Redfern (CR) methods. The kinetic thermodynamic parameters such as: E*, ΔH*, ΔS*and ΔG* are calculated from the DTG curves.