Nitramines with varying sensitivities: Functionalized dipyrazolyl-N- nitromethanamines as energetic materials

1,3-Dichloro-2-nitro-2-azapropane is an excellent precursor to dense energetic functionalized dipyrazolyl-N-nitromethanamines. This new family of energetic compounds was fully characterized by using ¹H, ¹³C, and ¹⁵N NMR and IR spectroscopy, differential scanning calorimetry, elemental analysis, and impact sensitivity tests. Additionally, single-crystal X-ray structuring was done for 3 and 5×CH₃CN, which gave insight into structural characteristics. The experimentally determined densities of 2-9 fall between 1.69 and 1.90 g cm^-3. Heats of formation and detonation properties were calculated by using Gaussian 03 and EXPLO5 programs, respectively. The influence of different energetic moieties on the structural and energetic properties was established theoretically. Energize your chemistry! 1,3-Dichloro-2-nitro-2-azapropane is the precursor to energetic dense functionalized dipyrazolyl-N-nitromethanamines (see figure, blue: Nitrogen, red: oxygen). The new compounds exhibit high thermal stability, high performance, and moderate to low sensitivities.