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Synthesis and Properties of 5,10-Bis(dinitromethyl)-furazan[3,4-e]bis([1,2,4]triazolo)[4,3-a:3′,4′-c] pyrazine and Its Energetic Ion Compounds
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(Institute of Chemical Materials, CAEP, Mianyang 621999, China)

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    Abstract:

    An energetic compound 5, 10-bis(dinitromethyl)-furazan[3, 4-e]bis([1, 2, 4]triazolo)[4, 3-a:3′, 4′-c] pyrazine (BOBTP, total yield of seven-step synthesis as 10%) was synthesized using diaminofurazan (DAF) as raw material. Its corresponding energetic ion compounds were synthesized via. neutralization reaction collocated with a series of nitrogen-rich cations. Its structure was characterized by single-crystal X-ray diffraction(XRD), Fourier transform infrared spectroscopy(FT-IR), nuclear magnetic resonance (1H NMR and 13C NMR) and elemental analyses. Its thermal decomposition temperature was measured by thermogravimetry(TG) and differential scanning calorimetry(DSC). Its detonation performance were calculated with Explore 5 v6.02 software. Results show that the crystal of dipotassium salt of BOBTP belongs to monoclinic system and C2/c space group with cell parameters of a=1.9913(3) nm, b=0.93491(12) nm, c=1.6807(2) nm, β=90.160(3)°, V=3129.0(7) nm3, Z=8, Dc =2.103 g·cm-3, M=1.752 mm-1, F(000) =1976. For energetic ion compounds obtained based on BOBTP, the measured densities at 25 ℃ are in the range of 1.62-1.75 g·cm-3 and the onset temperatures of thermal decomposition reaction are in the range of 186-232 ℃. The calculated detonation velocities and pressures are higher than 7500 m·s-1 and 20 GPa, respectively. The measured impact and friction sensitivities are relatively low. In which, the impact sensitivity of dihydroxylamine salt of BOBTP is 18 J and the friction sensitivity is 240 N.

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邓沐聪,张庆华,王康才,等.5,10-双(偕二硝基甲基)-呋咱并[3,4-e]双([1,2,4]三唑并)[4,3-a:3′,4′-c]吡嗪及其含能离子化合物的合成与性能[J].含能材料,2018,26(2):144-149.
DENG Mu-cong, ZHANG Qing-hua, WANG Kang-cai, et al. Synthesis and Properties of 5,10-Bis(dinitromethyl)-furazan[3,4-e]bis([1,2,4]triazolo)[4,3-a:3′,4′-c] pyrazine and Its Energetic Ion Compounds[J]. Chinese Journal of Energetic Materials,2018,26(2):144-149.

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History
  • Received:September 01,2017
  • Revised:November 16,2017
  • Adopted:
  • Online: February 11,2018
  • Published: February 12,2018