Three energetic salts based on oxy-bridged bis(gem-dinitro) furazan: Syntheses, structures and thermal behaviors.

Three high-energy salts ( 3 , 4 and 5 ) based on oxy-bridged bis( gem -dinitro) furazan with potassium and nitrogen-rich cations were reported. Their structures were fully characterized and confirmed by NMR ( 1 H, 13 C), IR spectroscopy, elemental analysis and single crystal X-ray diffraction. The thermal decomposition behaviors were studied by DSC and TG methods. And, the decomposition process of 5 was studied by the thermolysis in-situ rapid-scan FTIR. The non-isothermal kinetics parameters were obtained by Kissinger’s and Ozawa’s methods, respectively. The activation entropy (Δ S ≠ ), activation enthalpy (Δ H ≠ ), activation Gibbs free energy (Δ G ≠ ) and the critical temperature of thermal explosion were calculated. [ABSTRACT FROM AUTHOR]