Three-dimensional solvent-free Cu(I)-based metal-organic framework coordinated by 1,2,4-triazole derivative and its thermal decomposition kinetics

A solvent-free metal-organic framework (MOF) [Cu-3(CN)(3)(dtb)](n) (1) was hydrothermally constructed depending on 4,4 '-di(4H-1,2,4-triazol-4-yl)-1,1 '-biphenyl (dtb) and structural characterization was carried out through single crystal X-ray diffraction analysis. Compound 1 reveals an interpenetrated three-dimensional (3D) framework architecture by Cu-6(CN())6 rings and dtb ligands, resulting in a fascinating configuration. 1 displays very high thermal stability with the thermal decomposition temperature up to 301 degrees C and the research on non-isothermal kinetics was conducted at different heating rates through adopting Kissinger's and Ozawa-Doyle's methods. Remarkably, the kinetic triplets (the apparent activation energy Ea, the preexponential factor logA and the mechanism function f(alpha)) and the related thermodynamic parameters (the Gibbs energy of activation triangle G(not equal), the enthalpy of activation triangle H-not equal and the entropy of activation triangle S not equal) are discussed and calculated in detail. [GRAPHICS] .