Thermodynamic properties of 3D copper(II)-MOFs assembled by 1H-tetrazole

摘要: Three-dimensional MOFs, {[Cu3(tz)4Cl2] 2CH3OH}n (Htz = 1H-1,2,3,4-tetrazole), have been synthesized in methanol. It was characterized by chemical analysis, element IR spectroscopy, single-crystal X-ray diffraction and thermal analysis. Thermogravimetric analysis demonstrated that the MOFs after removing methanol molecules possessed good thermostability with decomposition temperature up to 533 K. The enthalpy change of liquid-phase formation reaction determined a RD496–2000 microcalorimeter at 298.15 K value (−46.63 ± 0.26) kJ mol−1. solid-phase calculated as (−573.89 ± 0.89) kJ mol−1 on basis designed thermochemical cycle. thermodynamics investigated changing reaction. Based experimental results, fundamental kinetic thermodynamic parameters k, n, E, $$\Delta H_{ \ne }^{\theta }$$ , S_{ G_{ were obtained. specific heat capacity be (1.87 ± 0.08) J K−1 g−1 RD496-2000 calorimeter. In addition, constant volume combustion energy title RBC-II rotating-bomb calorimeter 298.15 K. standard molar (−4736.43 ± 4.03) (293.42 ± 4.11) kJ mol−1, respectively.