A thermoanalytical study of copper(I) thiocarbamide compounds

Hydrated isostructural 1:3 complexes of copper(I) chloride and bromide with thiourea were synthesised and their thermal decomposition studied by simul taneous TG/DTA complemented by ex situ FTIR and XRD studies. The decomposit ion of Cu(tu)(3)Cl . H2O is initiated by dehydration around 100 degrees C, followed by a total multi-step degradation of the structure in the temperat ure range of 200-600 degrees C. The counter ion has some influence on the t emperatures and composition of the solid residue. The results were compared with those obtained with the 1:1 complex Cu(tu)Cl . 1/2H(2)O.