Energetic 4,4′-Oxybis[3,3′-(1-hydroxytetrazolyl)]furazan and Its Salts

Energetic compounds that incorporate multiple nitrogen-rich heterocycles are of great interest for high-density energetic materials. A facile synthetic strategy to combine an oxy bridge and furazan groups, as well as tetrazole-ols, into a molecule (5) was found. Some energetic salts based on 5 were prepared by neutralization. All of the compounds were fully characterized. Additionally, the structure of 7 has been elucidated by single-crystal XRD analysis. Physicochemical and energetic properties were also studied; these show that these newly designed energetic salts exhibit good thermal stabilities. Hydroxylammonium salt (6) has a detonation performance and sensitivities comparable with those of 1,3,5-trinitroperhydro-1,3,5-triazine (RDX).