Acta Phys. -Chim. Sin. ›› 1996, Vol. 12 ›› Issue (07): 668-672.doi: 10.3866/PKU.WHXB19960718

• Note • Previous Articles    

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

Wang Ya-Juan,Qi Xue-Yong,Li Xiao-Yan   

  1. Department of Chemistry,Shandong Institute of Education,Jinan 250013|Department of Chemistry,Shandong University,Jinan 250100
  • Received:1995-11-20 Revised:1995-02-01 Published:1996-07-15
  • Contact: Wang Ya-Juan


Thermal decomposition process of four benzimidazolyl-containing dicopper(Ⅰ) complexes: [Cu2(OCTB)](ClO4)2•1.5H2O(1), [Cu2 (NMOCTB)](ClO4)2•H2O(2), [Cu2(NBUOCTB)](ClO4)2(3), [Cu2(NBOCTB)](ClO4)2•H2O(4) and their kinetics were studied under the non-isothermal conditions by TG-DTG techniques. The non-isothermal kinetic data were analyzed 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: dα/dt=A•exp(-E/RT) •(1-α), the mechanism of this reaction corresponds to "Coring and Growth" with n=1; while for the first step of complex (3) decomposition, dα/dt=A•exp(-E/RT)• (1-α)2, which corresponds to the mechanism of "the second-order chemical reaction".

Key words: Copper(I) complex, Benzimidazole, Thermal decomposition, Non-isothermal kinetics