Oxygen-Rich 1,2,4-Triazolo [3,4-d]-1,2,4-triazolo[3,4-f]furazano [3,4b]pyrazines as Energetic Materials Aleksei B. Sheremetev,* [a] Vecheslav L. Korolev, [a] AleksandrA.P otemkin, [a, b] Abstract: Ac onvenient one-pot synthesis of 5,10-bis(trinitromethyl)-(5)a nd 5,10-bis(fluorodinitromethyl)furazano[3,4e]di([1,2,4]triazolo)[4,3-a:3',4'-c]pyrazines (6)b ye mploying the reaction of 5,6-dichlorofurazano[3,4-b]pyrazine with 5-(trinitromethyl)-and 5-(1-fluoro-1,1-dinitromethyl)tetrazoles, respectively,w as developed. The protocol was carriedo ut under mild conditions at am oderate temperature and over short reaction times to synthesize the products in excellent yields. For the first time, thesep olynitromethyl-substituted compounds, whichm ay have potential use as explosive and propellant materials,h ave been fully characterized. The burningr ate of compound 5 was shown to be slightly superior to that of 2,4,6,8,10,12-hexanitrohexaazaisowurtzitane (CL-20).[a] Prof. A. B. Sheremetev,V .L.Korolev,A .A.P otemkin, N.

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In this work, the algorithm and computer code, named DETO, used to calculate the detonation wave parameters (i.e., the velocity of detonation and the detonation pressure) of aluminized explosives, based on the chemical equilibrium theory of detonation products, the hydrodynamic theory of detonation process, and the Becker - Kistiakowsky - Wilson (BKW) equation of state. The aluminum (Al) content reacting with detonation products on the detonation wavefront can be changed according to the user's assumptions. Compared to experimental data for several aluminized explosive types, the results calculated by DETO have the same, even higher accuracy than those calculated by other computer codes previously published. Specifically, the mean absolute deviation from experimental data is about 2% for the velocity of detonation (VOD) and about 8% for the pressure on the detonation wavefront. In addition, the study also confirmed that about 50% of Al powders participate in the reaction on the detonation wavefront.