Synthesis, crystal structure and thermal behavior of 4-amino-3,5-dinitropyrazole copper salt

Synthesis, crystal structure and thermal behavior of 4-amino-3,5-dinitropyrazole copper salt
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4-氨基-3,5-二硝基吡唑铜盐的合成、晶体结构及热行为

DOI:
10.1016/j.cclet.2014.01.011
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发表时间:
2014-06
影响因子:
9.1
通讯作者:
Liu, Wei-Xiao
Liu, Wei-Xiao
中科院分区:
化学1区
文献类型:
--
作者:
Ji, Yue-Ping;Yi, Jian-Hua;An, Ting;Liu, Wei-Xiao

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首次合成了一种新型含能燃烧催化剂4-氨基-3,5-二硝基吡唑铜盐([Cu(adnp)2(H2O)2]),产率为93.6%。用单晶X射线衍射法测定了[Cu(adnp)2(H2O)2]的单晶结构。它属于三斜晶系,空间群P − 1,晶体参数a = 5.541(3)<$,B= 7.926(4)<$,c= 10.231(5)<$,β= 101.372(8)°,V= 398.3(3)<$3,Z= 1,μ= 1.467 mm−1,F(0 0 0)= 243,Dc = 2.000 g cm−3。采用差示扫描量热法(DSC)研究了[Cu(adnp)2(H2O)2]的热行为和非等温分解反应动力学。得到了[Cu(adnp)2(H2O)2]主要放热分解反应的动力学方程。活化熵(ΔS <$)、活化焓(ΔH <$)、活化自由能(ΔG <$)、自加速分解温度(TSADT)和热爆炸临界温度(Tb)分别为59.42 J mol− 1 K −1、169.5 kJ mol−1、1141.26 kJ mol−1、457.3 K和468.1 K。
A novel energetic combustion catalyst, 4-amino-3,5-dinitropyrazole copper salt ([Cu(adnp)2(H2O)2]), was synthesized in a yield of 93.6% for the first time. The single crystal of [Cu(adnp)2(H2O)2] was determined by single crystal X-ray diffraction. It crystallizes in a triclinic system, space groupP−1with crystal parametersa= 5.541(3) Å,b= 7.926(4) Å,c= 10.231(5) Å,β= 101.372(8)°,V= 398.3(3) Å3,Z= 1,μ= 1.467 mm−1,F(0 0 0) = 243, and Dc = 2.000 g cm−3. The thermal behavior and non-isothermal decomposition reaction kinetics of [Cu(adnp)2(H2O)2] were studied by means of different heating rate differential scanning calorimetry (DSC). The kinetic equation of major exothermic decomposition reaction for [Cu(adnp)2(H2O)2] was obtained. The entropy of activation (ΔS≠), enthalpy of activation (ΔH≠), free energy of activation (ΔG≠), the self-accelerating decomposition temperature (TSADT) and the critical temperature of thermal explosion (Tb) are 59.42 J mol−1K−1, 169.5 kJ mol−1, 1141.26 kJ mol−1, 457.3 K and 468.1 K, respectively.
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发表时间: 2001-09-01
影响因子: 2.4
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