Affiliations: [a] School of Chemical and Environmental Engineering, North University of China, Shanxi, China
| [b] Shanxi Engineering Technology Research Center for Ultrafine Powder, North University of China, Shanxi, China
Correspondence:
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Corresponding author: Dr. B.-D. Wu, School of Chemical and Environmental Engineering, North University of China, Shanxi 030051, China. Tel.: +0351 3924573; E-mail: [email protected].
Abstract: A 2D metal organic framework (MOF) coordination compound [Cd(H2O)2(AFT)2]n (1, HAFT = 4-amino-3-(5-tetrazolate)-furazan), combining the advantages of tetrazole and furazan rings, was synthesized and characterized by elemental analysis and FTIR spectroscopy. We design and synthesize 3D energetic MOFs based on 1. Single-crystal X-ray diffraction analysis revealed that 1 belongs to monoclinic, pertains to P21/c space group, a = 7.857(3) Å, b = 9.409(3) Å, c = 9.046(3) Å and β= 93.560(4)°. In 1, Cd2+ was hexacoordinated with four AFT groups and two water molecules. Noticeably, tetrazole-ring of AFT group presents typical bidentate coordination mode and furazan-ring was not take part in coordination. Differential scanning calorimetry (DSC) indicated that 1 was thermally stable with an onset decomposition temperature more than 250°C. The non-isothermal kinetics parameters were calculated by Kissinger’s method, Ozawa’s method and starink’s method respectively. The critical temperature of thermal explosion, entropy of activation (ΔS≠), enthalpy of activation (ΔH≠), and free energy of activation (ΔG≠) were also calculated as 300.23°C, –0.67 J·K–1·mol–1, 183.46 kJ·mol–1, and 183.65 kJ·mol–1, respectively. In the end, impact sensitivity was also determined by standard method.
