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 

机构地区：[1]School of Materials Science&Engineering,Beijing Institute of Technology,Beijing 100081,China [2]Experimental Center of Advanced Materials,School of Materials Science&Engineering,Beijing Institute of Technolegy,Beijing 100081,China [3]Beijing Institute of Technology Chongqing Innovation Center,Chongqing 401120,China

出　　处：《Chinese Journal of Chemistry》2020年第12期1619-1624,共6页中国化学（英文版）

基　　金：Authors are grateful for the support of the National Natural Science Foundation of China(Grant Nos.21702017,21875020);SKLST(BIT)QNKT18-03.

摘　　要：of main observation and conclusion In order to explore the effects of fluoro substituents on the energy and safety of energetic compounds,a series of fluorodinitrobenzenes including l,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 diffraction analysis.The results show that these compounds exhibit comparable detonation properties(D=6703-6978 m s^-1,and p=21.3-23.76Pa)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.

关 键 词：NITROBENZENE FLUORINE SUBSTITUENT 

分 类 号：O62[理学—有机化学]