High Thermal Stability and Insensitive Fused Triazole-Triazine Trifluoromethyl-Containing Explosives (TFX)

A trifluoromethyl-containing
fused triazole-triazine energetic
molecule, 3-nitro-7-(trifluoromethyl)-1,2,4-triazolo­[5,1-c]-1,2,4-triazin-4-amine (TFX), has been synthesized in three steps
from amino guanidine bicarbonate and trifluoroacetic acid. The process
was found to be effective, nontoxic, and simple. The X-ray structure
analysis of TFX finds that there are inter- and intramolecular hydrogen
bonds and π–π interactions in the crystal lattice.
TFX with a high density (1.88 g·cm–3) at room
temperature, excellent thermal stability (Tp = 300.3 °C), moderate energetic performance, and with insensitivity
to mechanical stimulation has potential as heat-resistant energetic
materials.