Four transition metal energetic complexes with 5,5′‐bistetrazole‐1,1′‐diolatedehydrate (BTO) have been synthesized and structurally characterized by FT‐IR spectroscopy, elemental analysis, and single X‐ray diffraction. The thermal decomposition processes of the complexes and BTO were studied by means of the TG‐TDA technologies. The compatibility of the four complexes with RDX, HMX, NC, and Al powder was also investigated. Sensitivity tests reveal that the complexes are more insensitive to mechanical stimuli than RDX.
5,5′‐Bistetrazole‐1,1′‐diolate‐based energetic salts from alkaline (Li+, K+, and Na+) and alkaline earth metal salts (Mg2+, Ca2+, and Ba2+) were synthesized in a simple, straightforward manner and were characterized by IR and NMR spectroscopy, and elemental analysis. Single‐crystal X‐ray diffraction of 4 salts (Li+, Na+, K+, and Mg2+) is given. The X‐ray structures show that in the title compounds, the metal atoms are bonded to the nitrogen and oxygen in the bistetrazole ring to form the sandwich structure. In addition, thermal stabilities of all title compounds were determined with differential thermal analysis‐thermal gravity analysis. All these new materials exhibit excellent thermal stabilities, high density, and excellent insensitivity to impact (h50 > 60 cm). Especially, the potassium salt is of interest as potential “green heat‐resistance explosive” with high density and high thermal stability as well as low sensitivity.
Alkaline Earth metal (Mg) energetic complex with 5,5′‐dinitramino‐3,3′‐bi[1,2,4‐triazolate] dihydrate (DNABT) has been synthesized and structurally characterized by FTIR spectroscopy, elemental analysis, and single X‐ray diffraction. The thermal decomposition processes of the complex and DNABT were studied by means of the TDA‐TG technologies. Sensitivity tests reveal that the complex is more insensitive to mechanical stimuli than DNABT. Combustion behavior shows that 1 has good color performances.
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