首页> 外文期刊>RSC Advances >A comparative study of the structures, thermal stabilities and energetic performances of two energetic regioisomers: 3(4)-(4-aminofurazan-3-yl)-4(3)-(4-nitrofurazan-3-yl)furoxan
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A comparative study of the structures, thermal stabilities and energetic performances of two energetic regioisomers: 3(4)-(4-aminofurazan-3-yl)-4(3)-(4-nitrofurazan-3-yl)furoxan

机译:两种能量性质测量体的结构,热稳定性和能量性能的比较研究:3(4) - (4-氨基脲-3-基)-4(3) - (4-硝基脲-3-基)Furoxan

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Although energetic regioisomers have attracted intensive attention due to their interesting structure–property correlation, their effective synthesis and accurate identification has remained very difficult. In this paper, we synthesized two energetic regioisomers, namely 3-(4-aminofurazan-3-yl)-4-(4-nitrofurazan-3-yl)furoxan (ANFF-34) and 4-(4-aminofurazan-3-yl)-3-(4-nitrofurazan-3-yl)furoxan (ANFF-43), via a controllable strategy with improved yields of 32% and 38%, respectively. The structures of ANFF-34 and ANFF-43 were unambiguously identified using comparative studies of ~(15) N NMR and single-crystal X-ray diffraction. Moreover, their thermal behaviours, and non-isothermal thermodynamic parameters were systematically investigated. Both ANFF-34 ( T _(m) : 116.2 °C, T _(d) : 255.4 °C) and ANFF-43 ( T _(m) : 106.2 °C, T _(d) : 255.6 °C) have similar thermal decomposition processes to that of DNTF. The superior performances of ANFF-34 ( ρ : 1.8 g cm ~(?3) , D : 8214 m s ~(?1) , P : 30.5 GPa, IS > 40 J) and ANFF-43 ( ρ : 1.7 g cm ~(?3) , D : 7868 m s ~(?1) , P : 27.0 GPa, IS > 40 J) indicate their great potential to be used as melt-cast carrier explosives. This study provides a solid foundation for the design and synthesis of new energetic compounds through isomer effects.
机译:虽然精力充沛的可感知引起了强烈的关注,但由于其有趣的结构性质相关性,但其有效的合成和准确的识别仍然非常困难。在本文中,我们合成了两种能量性质测量体,即3-(4-氨基脲-3-基)-4-(4-硝基脲-3-基)Furoxan(Anff-34)和4-(4-Aminofurazan-3- YL)-3-(4-硝基脲-3-基)呋喃香(ANFF-43),通过可控策略,分别提高产量为32%和38%。使用〜(15)NMR和单晶X射线衍射的比较研究明确地识别ANFF-34和ANFF-43的结构。此外,系统地研究了它们的热行为和非等温热力学参数。 ANFF-34(T _(M):116.2°C,T _(D):255.4°C)和ANFF-43(T _(M):106.2°C,T _(D):255.6°C)对DNTF的热分解过程具有类似的热分解过程。 Anff-34的优异性能(ρ:1.8g cm〜(α3),d:8214ms〜(α1),p:30.5 gpa,> 40 j)和Anff-43(ρ:1.7g cm〜 (?3),D:7868 ms〜(?1),p:27.0 gpa,> 40 j)表明它们用作熔喷载体爆炸物的巨大潜力。本研究为通过异构效应设计和合成新的能量化合物的坚实基础。

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