1,3,3-Trinitroazetidine

1,3,3-Trinitroazetidine (TNAZ) is a highly energetic heterocyclic compound that has been considered as a potential replacement for TNT because of its low melting point (101 °C) and good temperature stability (up to 240 °C). TNAZ was first synthesized by Archibald et al. in 1983 in work published in 1990. Several synthesis routes are known and bulk production of several hundred kilogram batches has been demonstrated at Los Alamos National Laboratory.
Properties.
TNAZ forms pale yellow crystals with a melting point of 101 °C. The compound crystallizes in an orthorhombic lattice with the space group Pbca. Thermolysis occurs starting around 240 °C - 250 °C with decomposition products that include nitrogen dioxide, nitric oxide, nitrous acid, carbon dioxide and formaldehyde. As far as energetic properties, it is roughly 30% more energetic than TNT and has a heat of explosion of ~6343 kJ/kg, a detonation velocity of ~9000 m/s, and a detonation pressure of 36.4 GPa.