Two Environmentally Friendly Energetic Compounds, [Mn(AZT)4(H2O)2](PA)2·4H2O and [Co(AZT)2(H2O)4](PA)2, Based on 3-Azido-1,2,4-triazole (AZT) and Picrate (PA)

Modulating energetic performance through decorating nitrogen-rich ligands in high-energy MOFs

In the presence of different nitrogen-rich ligands, two energetic MOFs with formulas [Ag(tza)]_n (1) and [Ag(atza)]_n (2) (Htza = tetrazole-1-acetic acid and Hatza = (5-amino-1H-tetrazole-1-yl) acetic acid) were successfully synthesized and characterized. X-ray single crystal structure analysis shows that both 1 and 2 have 2D layer-like topologies. The experimental and theoretical evaluations reveal the promising properties of both energetic compounds, such as prominent heats of detonation, high thermal stabilities, good sensitivities and excellent detonation performances. In contrast to 1, interestingly, the introduction of the amino group in 2 leads to various coordination modes of the ligands and different stacking patterns of the frameworks, resulting in the observation of the shorter Ag-O, Ag-Ag, C-N, N-N, and N[double bond, length as m-dash]N bond lengths in 2. Consequently, 2 features superior heats of detonation and thermostability compared to 1. The nonisothermal thermokinetic parameters are obtained by using the Kissinger and Ozawa methods, while the standard molar enthalpies of formation are calculated from the determination of constant volume combustion energies. In addition, both compounds were explored as practical additives to promote the thermal decomposition of ammonium perchlorate (AP). This work may provide an effective approach for manipulating the energetic properties and thermostability of high-energy compounds via the perturbation of energetic groups.

Design, synthesis and investigations of a series of energetic salts through the variation of amines and concentration of picrate anions

Eight energetic salts combining N-bases with picrate ion were synthesized in high yields. The structures and energetic properties were regulated by the variation of N-base molecules and the concentration of the picric acid in the reaction mixture.

Energetic transition metal salts of 5,5′-dinitramino-3,3′-methylene-1H-1,2,4-bistriazole: syntheses, structures and properties

Five energetic transition metal salts based on H₂DNAMT were synthesized. Meanwhile, H₂DNAMT was oxidized to H₂BNATO due to Fe³⁺ in [Fe(BNATO)(H₂O)₄]·2H₂O. All of the metal salts exhibit comparable thermal stability and insensitivity.

Energetic salts prepared from phenolate derivatives

Energetic salts with 1 : 1, 2 : 1, and 3 : 1 charge ratios (cation : anion) based on various nitrogen-rich cations and phenolate anions have been synthesized by a straightforward and simple method.