Syntheses and Properties of Methoxy and Nitrile Functionalized Imidazolium Tris(pentafluoroethyl)trifluorophosphate Ionic Liquids
Syntheses and Properties of Methoxy and Nitrile Functionalized Imidazolium Tris(pentafluoroethyl)trifluorophosphate Ionic Liquids
复制标题
DOI：
10.1021/acs.jced.7b00281
复制
发表时间：
2018-03
影响因子：
--
通讯作者：
Julius Kim A. Tiongson;D. A. Bruzon;G. Tapang;I. S. Martinez
中科院分区：
文献类型：
--
作者：
Julius Kim A. Tiongson;D. A. Bruzon;G. Tapang;I. S. Martinez
采用另一种更温和的方法来合成三（五氟乙基）三氟磷酸盐（FAP）离子液体（IL）。使用离子交换色谱法代替 Ignat’ev 及其同事开发的典型电化学氟化法。由此产生的程序简单且易于执行，因为避免了腐蚀性氢氟酸的使用以及有毒和爆炸性副产品的产生。采用甲氧基和腈部分对咪唑鎓阳离子的烷基进行官能化来观察性能的变化。 1H、19F和31P NMR、IR和UV-vis光谱技术证实了合成的成功。获得约 80% (w/w) 的定量产物收率。与其他含氟离子液体相比，合成的基于 FAP 的离子液体的水含量和粘度值较低。热分析导致热降解温度高于 573.15 K。电化学分析...
An alternative and more benign method was employed to synthesize tris(pentafluoroethyl)trifluorophosphate (FAP) ionic liquids (ILs). Ion exchange chromatography was used instead of the typical electrochemical fluorination developed by Ignat’ev and co-workers. The resulting procedure is simple and can be readily performed, as the use of corrosive hydrofluoric acid and the production of toxic and explosive byproducts were circumvented. Functionalization of the alkyl group of the imidazolium cation with a methoxy and a nitrile moiety was employed to observe changes in properties. The success of the synthesis was confirmed by 1H, 19F, and 31P NMR, IR, and UV–vis spectroscopy techniques. Quantitative product yields of approximately 80% (w/w) were obtained. The water content and viscosity values of the synthesized FAP-based ILs were found to be lower compared to other fluorine-containing ionic liquids. Thermal analyses resulted in high thermal degradation temperatures greater than 573.15 K. Electrochemical anal...