含能材料2017，Vol.25Issue(4)：315-320,6.DOI:10.11943/j.issn.1006-9941.2017.04.008
5,5'-(2-三氟甲基)-咪唑-4,5-二(1H-四唑)及其含能离子盐的合成与表征
Synthesis and Characterization of 5,5'-(2-(Trifluoromethyl)-1H-imidazole-4,5-diyl) his(1H-tetrazole) and Its Energetic Ionic Salts
摘要
Abstract
Using diaminomaleonitrile as starting material,a novel energetic compound 5,5'-(2-(trifluoromethyl)-1H-imidazole-4,5-diyl) bis(1H-tetrazole) was synthesized by condensation cyclization reaction with trifluoroacetic anhydride and the second condensation cyclization reaction with NaN3 in the yield of 61.3％;based on acidity of the compound,two energetic ionic salts of hydroxylamine and guanidine of 5,5'-(2-(trifluoromethyl)-1H-imidazole-4,5-diyl) bis(1H-tetrazole) were designed and synthesized.The structures of products and intermediates were characterized by IR,NMR and elemental analysis.Key factors affecting the cyclization reaction for tetrazole in the formation process of 5,5'-(2-(trifluoromethyl)-1H-imidazole-4,5-diyl) bis (1H-tetrazole) were discussed,the optimum reaction conditions were determined as:H2O as reaction medium,n (2-(trifluoromethyl)-1H-imidazole-4,5-dicarbonitrile) ∶ n(NaN3)=1∶2.4,reaction temperature 98℃,reaction time 4 h,yield up to 86.3％.The thermal decomposition of 5,5'-(2-(trifluoromethyl)-1H-imidazole-4,5-diyl) bis (1H-tetrazole) was studied by DSC-TG,which shown the compound decomposition starts at 223.65℃,and the whole decomposition process undergos two main exothermic decomposition stages and weight loss stages,the maximum exothermic peak temperature is 285.78 ℃,the structure of the compound is relatively stable.关键词
5,5'-(2-三氟甲基)-咪唑-4,5-二(1H-四唑)/含能离子盐/合成/表征Key words
5,5'-(2-(trifluoromethyl)-1H-imidazole-4,5-diyl)bis(1H-tetrazole)/energetic ionic salt/synthesis/characterization分类
军事科技引用本文复制引用
吴敏杰,毕福强,周彦水,翟连杰,王伯周..5,5'-(2-三氟甲基)-咪唑-4,5-二(1H-四唑)及其含能离子盐的合成与表征[J].含能材料,2017,25(4):315-320,6.基金项目
国家自然科学基金(21243007) （21243007）
