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Issue 25, 2013
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N-Trinitroethylamino functionalization of nitroimidazoles: a new strategy for high performance energetic materials

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Abstract

An N-functionalized strategy, including N-amination and N-trinitroethylamination, was utilized for the synthesis of nitroimidazole-based energetic materials, giving rise to a new family of highly insensitive N-aminonitroimidazoles and oxygen-rich N-trinitroethylaminonitroimidazoles with good to excellent properties. These new energetic materials were fully characterized by IR, 1H, and 13C NMR, elemental analysis, and some high performance compounds were further confirmed by 15N NMR (4a, 4d, 6a, 6b, and 6d), as well as single crystal X-ray diffraction (6a and 6b). N-Functionalization of nitroimidazoles not only gives rise to the N-aminonitroimidazoles as impact insensitive and thermally stable materials (IS > 40 J; Td: 144–308 °C), but also provides a series of N-trinitroethylaminoimidazoles, which have favorable densities (1.75–1.84 g cm−3), good detonation properties (P: 27.6–35.9 GPa; vD: 7815–8659 m s−1), and moderate thermal stabilities (136–172 °C). These properties are better than some known energetic compounds, such as TNT (P: 19.5 GPa; vD: 6881 m s−1) and TATB (P: 31.2 GPa; vD: 8114 m s−1), and are comparable to RDX (P: 35.0 GPa; vD: 8762 m s−1).

Graphical abstract: N-Trinitroethylamino functionalization of nitroimidazoles: a new strategy for high performance energetic materials

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Publication details

The article was received on 03 Apr 2013, accepted on 10 May 2013 and first published on 13 May 2013


Article type: Paper
DOI: 10.1039/C3TA11356F
Citation: J. Mater. Chem. A, 2013,1, 7500-7510
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    N-Trinitroethylamino functionalization of nitroimidazoles: a new strategy for high performance energetic materials

    P. Yin, Q. Zhang, J. Zhang, D. A. Parrish and J. M. Shreeve, J. Mater. Chem. A, 2013, 1, 7500
    DOI: 10.1039/C3TA11356F

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