Synthesis and Investigation of Advanced Energetic Materials Based on Bispyrazolylmethanes
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- 25 November 2016
- journal article
- research article
- Published by Wiley in Angewandte Chemie-International Edition
- Vol. 55 (52), 16132-16135
- https://doi.org/10.1002/anie.201609267
Abstract
Herein we present the preparation and characterization of three new bispyrazolyl-based energetic compounds with great potential as explosive materials. The reaction of sodium 4-amino-3,5-dinitropyrazolate (5) with dimethyl iodide yielded bis(4-amino-3,5-dinitropyrazolyl)methane (6), which is a secondary explosive with high heat resistance (Tdec=310 °C). The oxidation of this compound afforded bis(3,4,5-trinitropyrazolyl)methane (7), which is a combined nitrogen- and oxygen-rich secondary explosive with very high theoretical and estimated experimental detonation performance (Vdet (theor)=9304 m s−1 versus Vdet(exp)=9910 m s−1) in the range of that of CL-20. Also, the thermal stability (Tdec=205 °C) and sensitivities of 7 are auspicious. The reaction of 6 with in situ generated nitrous acid yielded the primary explosive bis(4-diazo-5-nitro-3-oxopyrazolyl)methane (8), which showed superior properties to those of currently used diazodinitrophenol (DDNP).This publication has 23 references indexed in Scilit:
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