含能材料2017，Vol.25Issue(5)：437-440,4.DOI:10.11943/j.issn.1006-9941.2017.05.014
1-三硝甲基-3-硝基-1,2,4-三唑的晶体结构及性能预估
Crystal Structure and Property Prediction of 1-Trinitromethyl-3-nitro-1,2,4-triazole
摘要
Abstract
To get the crystal structure of 1-trinitromethyl-3-nitro-1,2,4-triazole(TNMNT) and estimate its properties, using 3-nitro-1,2,4-triazole as starting material, TNMNT was synthesized via substitution reaction and nitration reaction with total yield of 62%.The pure single crystal of TNMNT was cultured and obtained by solvent evaporation method using absolute ethyl alcohol as solvent.Its structure was characterized by NMR spectrometry, IR spectrometry, and single crystal X-ray diffractometer.The thermal stability was analyzed by the DSC-TG method.The enthalpy of formation and detonation parameters were calculated with Gaussian 09 and EXPLO5(V6.02) program, respectively.Results show that the crystal of TNMNT belongs to monoclinic system, space group is P21/c with crystal parameters of a=6.643(3), b=20.494(7), c=6.698(3), β=94.225(9)°, V=909.4(6), Z=4, Dc=1.922 g·cm-3, μ=0.190 mm-1, F(000)=528.0.The thermal decomposition peak temperature of TNMNT at a heating rate of 5 ℃·min-1 is 158.3 ℃.Its standard enthalpy of formation is 210.9 kJ·mol-1, detonation velocity 9023 m·s-1, and detonation pressure 35.5 GPa.The existence of numerous intermolecular and intramolecular hydrogen bonds makes the TNMNT molecule stably exist, and the introduction of the trinitromethyl moeity makes the energy of TNMNT molecule enhance.关键词
1-三硝甲基-3-硝基-1,2,4-三唑(TNMNT)/合成/晶体结构/性能Key words
1-trinitromethyl-3-nitro-1/2/4-triazole(TNMNT)/synthesis/crystal structure/property分类
军事科技引用本文复制引用
殷欣,马卿,王军,王树民..1-三硝甲基-3-硝基-1,2,4-三唑的晶体结构及性能预估[J].含能材料,2017,25(5):437-440,4.基金项目
国家自然科学基金青年基金项目(11402237) （11402237）
中国工程物理研究院科学技术发展基金项目(2015B0302055) （2015B0302055）
