Non-isothermal kinetics and crystal structure of one-dimensional coordination polymer {[Cu(H₂bttc)(H₂O)₃] ·3H₂O}_n

Thermal analyses DSC and TG-DTG have been performed on the title coordination polymer (H₂bttcs 1,2,4,5-benzenetetracarboxylate) to investigate its thermal decomposition mechanism and the associated kinetics. The thermal decomposition mechanism is predicted based on DSC, TG-DTG and FTIR techniques. The most probable kinetic model function of the first mass loss stage is determined by comparison of kinetic parameters obtained by using Kissinger, Ozawa, integral and differential methods. The coordination polymer is comprised of the molecular chains of [Cu(H₂bttc)(H ₂O)₃]_n with guest water molecules linked by intermolecular hydrogen bonds. This structural feature is in agreement with the results of the thermal analyses on the coordination polymer. Another kind of hydrogen bonds that link the molecular chains together to form the two-dimensional frameworks make the molecules stable up to 553 K after the release of the coordination and lattice waters. CCDC: 611873.