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

Jiaheng Zhang; Chunlin He; Damon A Parrish; Jean'ne M Shreeve

doi:10.1002/chem.201300747

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

Chemistry. 2013 Jul 1;19(27):8929-36. doi: 10.1002/chem.201300747. Epub 2013 May 16.

Authors

Jiaheng Zhang¹, Chunlin He, Damon A Parrish, Jean'ne M Shreeve

Affiliation

¹ Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China.

PMID: 23681737
DOI: 10.1002/chem.201300747

Abstract

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 (1)H, (13)C, and (15)N 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.