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Synthesis, Characterization are Properties of 1,4-Dinitramino-3,6-dinitropyrazolo[4,3-c]pyrazole and Its Energetic Salts
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(State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi′an Modern Chemistry Research Institute, Xi′an 710065, China)

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    Abstract:

    Using self-synthetic 1, 4-diamino-3, 6-dinitropyrazolo[4, 3-c]pyrazole as raw material, a high energy material 1, 4-dinitramino-3, 6- dinitropyrazolo[4, 3-c]pyrazole(DNANP) was synthesized via the nitration. Its twelve organic energetic salts were prepared via the neutralization and metathesis reactions of DNANP and organic amine. The structures of target compounds were characterized by IR spectrometry, 1H NMR, 13C NMR, elemental analyses, mass spectrometry etc. The single crystal of DNANP·CH3COOH was obtained and the crystal structure was analyzed. The thermal performances of DNANP and its energetic salts were analyzed by DSC. The detonation performances of target compounds were predicted using CBS-4M method of Gaussian 09 program and Kamlet-Jacobs equations. Rsults show thate thermal decomposition peak temperatures of DNANP and its twelve energetic salts are 133.28, 176.66, 178.45, 155.52, 156.90, 144.78, 160.86, 155.60, 159.05, 198.90, 158.10, 173.06 ℃ and 157.41 ℃, respectively. Their densities are from 1.71 g·cm-3 to 1.92 g·cm-3, the detonation velocities are from 7.690 km·s-1 to 9.463 km·s-1 and the detonation pressures are from 25.9 GPa to 41.8 GPa, indicating that DNANP and its organic energetic salts are high energy density materials with good properties.

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李亚南,常佩,陈涛,等.1,4-二硝胺基-3,6-二硝基吡唑[4,3-c]并吡唑及其含能盐的合成、表征及性能[J].含能材料,2018,26(7):578-584.
LI Ya-nan, CHANG Pei, CHEN Tao, et al. Synthesis, Characterization are Properties of 1,4-Dinitramino-3,6-dinitropyrazolo[4,3-c]pyrazole and Its Energetic Salts[J]. Chinese Journal of Energetic Materials,2018,26(7):578-584.

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History
  • Received:November 24,2017
  • Revised:January 26,2018
  • Adopted:
  • Online: July 19,2018
  • Published: July 25,2018