Systematic Synthesis\nof Thermally Stable Zwitterionic\nEnergetic Materials Based on 4‑Hydroxy-3,5-dinitropyrazole

4-Hydroxy-3,5-dinitropyrazole (HODNP) was investigated\nas a precursor\nfor synthesizing two thermally stable, insensitive zwitterionic energetic\nmaterials. The ability of the hydroxy functionality to carry negative\ncharge was leveraged and further covalently bonded with two positively\ncharged moieties (3,4-diamino-1,2,4-triazole and acetimidamide) via\nN-functionalization to form zwitterions <b>2</b> and <b>3</b>. Structural characterization and a study of the energetic performance\nwere carried out. The zwitterionic nature of compound <b>3</b> was confirmed by single-crystal analysis.