Yan Zhengfeng, Lu Tingting, Liu Yajing, Liu Weixiao, Zhao Baodong, Wang Yinglei, Ge Zhongxue
Xi'an Modern Chemistry Research Institute, Xi'an 710065, P.R. China.
State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi'an Modern Chemistry Research Institute, Xi'an 710065, P.R. China.
ACS Omega. 2021 Jul 18;6(29):18591-18597. doi: 10.1021/acsomega.1c01018. eCollection 2021 Jul 27.
A trifluoromethyl-containing fused triazole-triazine energetic molecule, 3-nitro-7-(trifluoromethyl)-1,2,4-triazolo[5,1-]-1,2,4-triazin-4-amine (TFX), has been synthesized in three steps from amino guanidine bicarbonate and trifluoroacetic acid. The process was found to be effective, nontoxic, and simple. The X-ray structure analysis of TFX finds that there are inter- and intramolecular hydrogen bonds and π-π interactions in the crystal lattice. TFX with a high density (1.88 g·cm) at room temperature, excellent thermal stability ( = 300.3 °C), moderate energetic performance, and with insensitivity to mechanical stimulation has potential as heat-resistant energetic materials.
一种含三氟甲基的稠合三唑 - 三嗪高能分子，3 - 硝基 - 7 - （三氟甲基）-1,2,4 - 三唑并[5,1 - a]-1,2,4 - 三嗪 - 4 - 胺（TFX），已由氨基胍碳酸氢盐和三氟乙酸分三步合成。该过程被发现是有效、无毒且简单的。TFX的X射线结构分析发现，晶格中存在分子间和分子内氢键以及π - π相互作用。TFX在室温下具有高密度（1.88 g·cm³）、优异的热稳定性（Td = 300.3 °C）、适度的能量性能，并且对机械刺激不敏感，具有作为耐热高能材料的潜力。
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