Synthesisand non-isothermal degradations of the bridged diacetato–diamido–diamine–uranylcomplex

The new bridged diacetato–diamido–diamine–uranyl complex {2[(UO₂)(H₂N)(H₃N)(OOCCH₃)]} was prepared and characterized by elemental analysis, IR measurement as well as TG and DTA analysis. The kinetic parameters; activation energy (E_a), pre-exponential factor (A) and the order of decomposition (n) were calculated from TG curves using Coats–Redfern and Flynn–Wall–Ozawa methods. The mechanism of decomposition has been established from TG and DTA data. The data obtained agree quite well with the expected structure and show that the complex finally decomposes to form UO₃. A general mechanism describing the formation of bridged complex {2[(UO₂)(H₂N)(H₃N)(OOCCH₃)]} is proposed.