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Issue 5, 2018
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Nitrogen-rich salts based on the combination of 1,2,4-triazole and 1,2,3-triazole rings: a facile strategy for fine tuning energetic properties

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Abstract

The synthesis of four neutral 4-nitro-5-(1,2,4-triazol-3-yl)-2H-1,2,3-triazole compounds in combination with different energetic moieties like amino, nitrimino, nitro, and azo groups is presented. Furthermore, a novel family of energetic salts based on the 4-nitro-5-(5-R-1,2,4-triazol-3-yl)-2H-1,2,3-triazole (2: R = nitrimino; 3: R = nitro) monoanion and dianion were controllably synthesized. All new compounds were fully characterized by IR and multinuclear NMR spectroscopy, elemental analysis and DSC measurements. The molecular structures of 2, 3, 8 and 17 were determined by single-crystal X-ray diffraction. In addition, the heats of formation and detonation performance of all the energetic compounds were calculated using Gaussian 09 and EXPLO5 v6.01 programs, respectively. Both experimental and theoretical evaluations show promising properties for these energetic compounds, such as high density, positive heats of formation, high thermal stabilities, good sensitivities and excellent detonation performances. Among them, 6, 7, 14 to 16, 24 and 25 exhibit favorable overall properties as energetic materials.

Graphical abstract: Nitrogen-rich salts based on the combination of 1,2,4-triazole and 1,2,3-triazole rings: a facile strategy for fine tuning energetic properties

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Publication details

The article was received on 11 Oct 2017, accepted on 03 Jan 2018 and first published on 04 Jan 2018


Article type: Paper
DOI: 10.1039/C7TA08941D
Citation: J. Mater. Chem. A, 2018,6, 2239-2248
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    Nitrogen-rich salts based on the combination of 1,2,4-triazole and 1,2,3-triazole rings: a facile strategy for fine tuning energetic properties

    Z. Xu, G. Cheng, S. Zhu, Q. Lin and H. Yang, J. Mater. Chem. A, 2018, 6, 2239
    DOI: 10.1039/C7TA08941D

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