Studies on the Non-isothermal Kinetics of Thermal Decomposition of Benzimidazolyl-containing Dicopper(I) Complexes

Thermal decomposition process of four benzimidazolyl-containing dicopper(I) complexes: [Cu-2(OCTB)]ClO4)(2)center dot 1.5H(2)O(1), [Cu-2(NMOCTB)](ClO4)(2)center dot H2O(2), [Cu-2(NBUOCTB)](ClO4)(2)(3), [Cu-2(NBOCTB)](ClO4)(2)center dot H2O(4) and their kinetics were studied under the non-isothermal conditions by TG-DTG techniques, The non-isothermal kinetic data were analysed by means of Achar and Coats-Redfern method respectively, The kinetic equation for the second step of the decomposition of complex (1) can be expressed as: d alpha/dt=A.exp(-E/RT).(1-alpha), the mechanism of this reaction corresponds to "Coring and Growth" with n=1; while for the first step of complex (3) decomposition, d alpha/dt=A.exp(-E/RT).(1-alpha)(2), which corresponds to the mechanism of "the second-order chemical reaction".