THERMAL-DECOMPOSITION OF NICKEL(II) COMPLEXES UNDER QUASI-EQUILIBRIUMCONDITIONS .4. STOICHIOMETRY OF THERMAL-DECOMPOSITION, THERMAL-STABILITY AND STEREOCHEMISTRY OF COMPLEXES

The stoichiometry of thermal decomposition and the relationship betwee n the thermal parameters (quasi-equilibrium decomposition temperatures T-D and decomposition entalpies Delta H-D) of NiL(4)(NCS)(2) complexe s (L = imidazole derivatives) were studied. It was found that changes in the experimental conditions strongly influence the decomposition st oichiometry. The T-D and Delta H-D can be ordered in the following seq uence (according to L): imidazole<2-Me imidazole<2-Et imidazole<1-Me i midazole.