Exploring BH_2CN-based hydrophobic hypergolic fuels and effective fuel“additives”: Imidazolylidene cyanoborane complexes  

作　　者：Xingye Li Jiayu Nan Tian Lu Hongyu Huo Yanqiang Zhang Haibo Li Fude Nie Hongquan Yin Fu-Xue Chen 

机构地区：[1]School of Chemistry and Chemical Engineering, Beijing Institute of Technology [2]Division of Ionic Liquids and Green Engineering, Institute of Process Engineering, Chinese Academy of Sciences [3]Institute of Chemical Materials, China Academy of Engineering Physics

出　　处：《Chinese Chemical Letters》2018年第6期939-941,共3页中国化学快报（英文版）

基　　金：the financial support from the National Natural Science Foundation of China (Nos. 21372027, 21376252)

摘　　要：Two hydrophobic imidazolylidene-cyanoborane complexes were prepared by the introduction of{BH2 CN} into the molecular formula via treatment of imidazolium iodide and Na BH3 CN avoiding literature’s tedious and hazardous procedures. These two complexes were fully characterized using IR spectroscopy,1 H NMR and13C NMR spectroscopy and high-resolution mass spectrometer. The X-Ray structure of NHC-1 has been determined. NHC-2 was proved to be hypergolic with WFNA and displayed the attractive properties such as water immiscibility, wide liquid range（Tg= -22C）, short ignition delay time（13 ms）, high density（0.98 g/cm3）, good density impulse（r Isp, 347 s g cm-3）, showing the promising application potential as a fuel and an efficient fuel additive.Two hydrophobic imidazolylidene-cyanoborane complexes were prepared by the introduction of{BH2 CN} into the molecular formula via treatment of imidazolium iodide and Na BH3 CN avoiding literature’s tedious and hazardous procedures. These two complexes were fully characterized using IR spectroscopy,1 H NMR and13C NMR spectroscopy and high-resolution mass spectrometer. The X-Ray structure of NHC-1 has been determined. NHC-2 was proved to be hypergolic with WFNA and displayed the attractive properties such as water immiscibility, wide liquid range（Tg= -22C）, short ignition delay time（13 ms）, high density（0.98 g/cm3）, good density impulse（r Isp, 347 s g cm-3）, showing the promising application potential as a fuel and an efficient fuel additive.

关 键 词：Bipropellants Imidazolylidene cyanoboranes Hypergolic fuels Ionic liquids HYDROPHOBIC 

分 类 号：O641.4[理学—物理化学] V51[理学—化学]