Synthesis and Characterization of Fluorodinitrobenzenes with Tunable Melting Point:Potential Low Sensitive Energetic Plasticizer and Melt-Cast Carrier

• 作者: Yunlu Li Peng Chen Yan Liu Ping Yin Chunlin He Siping Pang
• 来源期刊: 中国化学（英文版）
• 年，卷（期）: 2020,（12）
• 所属期刊栏目: Concise Reports
• 页码范围: 1619-1624
• 页数: 6页
• 语种: 英文
• DOI: 10.1002/cjoc.202000355

摘要

In order to explore the effects of fluoro substituents on the energy and safety of energetic compounds,a series of fluorodinitrobenzenes including 1,3-difluoro-2,4-dinitrobenzene(1),1,5-difluoro-2,4-dinitrobenzene(2),1,2,3-trifluoro-4,6-dinitrobenzne(3)and 1,3,5-trifluoro-2,4-dinitrobenzene(4)were prepared.All the compounds were fully characterized.The structures of 2 and 3 were further confirmed by single crystal X-ray difraction analysis.The results show that these compounds exhibit comparable detonation properties(D = 6703-6978 m·s-1,and p = 21.3-23.7 GPa)to those of 2,4,6-trinitrotoluene(TNT)due to the significantly increased density of fluorine introduced.Low sensitivity(IS ＞ 40 J,and FS ＞ 360 N)of these compounds along with different melting points make them potential candidates for different allocation.Among them,1 and 4 with the melting point of 42.5 ℃ and 55.2 ℃,respectively,show promise for application in the field of energetic plasticizer.Compounds 2 and 3 are potential low sensitive melt-cast carrier due to their similar melting point and superior detonation performance to that of TNT.