Bis- N( p-ethoxyphenyl)dithiocarbamato complexes of Cu(II), Zn(II), Cd(II), Sn(II), Sn(IV), Ni(II) and Pd(II)

Abstract

Bis- N( p-ethoxyphenyl)dithiocarbamato complexes of copper(II), zinc(II), cadmium(II), tin(II), tin(IV), nickel(II) and palladium(II), abbreviated as Cu(PED) 2, Zn(PED) 2, Cd(PED) 2, Sn(PED) 2, Sn(PED) 2Cl 2, Ni(PED) 2 and Pd(PED) 2, have been synthesized. These complexes have been characterized on the basis of elemental analyses, molecular weight determinations, conductance measurements, IR and electronic spectral studies. Thermal studies of these complexes have been carried out in a static air atmosphere to determine their mode of decomposition. Kinetic parameters such as apparent activation energy and order of reaction have been determined using the graphical method of Coats and Redfern. Heats of reaction for different decomposition steps have been calculated from the DTA curves. The intermediates obtained at the end of various thermal decomposition steps were identified on the basis of elemental analyses and IR spectral studies.