Zwitterionic fused pyrazolo-triazole based high performing energetic materials

Abstract

A series of nitrogen-rich fused energetic materials were synthesized from commercially available inexpensive starting materials and fully characterized using ¹H and ¹³C NMR, IR spectroscopy, elemental analysis, and DSC. The structure of zwitterionic compound 2 was supported by SCXRD data. Among all, 3 and 4 possess excellent detonation velocity (8956 and 9163 m s⁻¹) and are insensitive towards friction (>360 N) and impact (10 J), having moderate to excellent thermal stability (171–262 °C). It is worth mentioning that the zwitterionic fused pyrazolo-triazole compound 2 and its energetic salts offer remarkable performance as new-generation thermally stable energetic materials.