Abstract The heat of combustion and enthalpy of formation of bis(4 $$''$$ ″ -nitro[3,3 $$'$$ ′ :4 $$'$$ ′ ,3 $$''$$ ″ ]terfurazan-4-yl)-diazene (DNFNF) and (bis(4 $$''$$ ″ -azido-[3,3 $$'$$ ′ :4 $$'$$ ′ ,3 $$''$$ ″ ]terfurazan-4-yl)-diazene (DAzFNF) were first experimentally determined. It is found that the energy increment for replacing the nitro group with an azide group in the furazan cycle averages 290 kJ/mol and is close to the increment for replacing NO 2 with N 3 in trinitroethane. The dependence of the energy parameters of metal-free rocket propellants based on a mixture of ammonium perchlorate and DNFNF or DAzFNF with an active binder on the content of the high-enthalpy component in the formulation was studied by thermodynamic analysis.

中文翻译：

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Diazen-Ter-Furazans的对称硝基和叠氮衍生物的热化学和能量特性

摘要 bis(4 $$''$$ ″ -nitro[3,3 $$'$$ ′ :4 $$'$$ ′ ,3 $$''$$ ″ ] 的燃烧热和生成焓terfurazan-4-yl)-diazene (DNFNF) 和 (bis(4 $$''$$ ″ -azido-[3,3 $$'$$ ′ :4 $$'$$ ′ ,3 $$'' $$ ″ ]terfurazan-4-yl)-diazene (DAzFNF)首先被实验确定。发现在呋咱循环中用叠氮基取代硝基的能量增量平均为290 kJ/mol，接近于在三硝基乙烷中用 N 3 替代 NO 2 的增量。基于高氯酸铵和 DNFNF 或 DAzFNF 混合物的无金属火箭推进剂的能量参数对配方中高焓组分含量的依赖性通过热力学分析进行了研究。