BrФnsted酸离子液体的合成和表征  

Synthesis and Characterization of BrФnsted-Acidic Ionic Liquids

作　　者：柏杨[1] 肖国光[1] 李国朝[1] 

机构地区：[1]九江学院化学化工学院

出　　处：《光谱实验室》2010年第5期1976-1982,共7页Chinese Journal of Spectroscopy Laboratory

摘　　要：制备了5类含有不同含氮官能团及不同阴离子的功能Brnsted酸离子液体,分别用核磁共振(NMR)、红外光谱(IR)、电喷雾质谱(ESI-MS)和热重分析(TG/DTA)等表征方法对制备的离子液体进行表征。结果表明:合成的10种离子液体与预期设计结构相同,纯度大于95%;热重分析表明,制备的离子液体的分解温度较高,除了[MPy]NO3为199℃以外,其他离子液体均高于300℃,具有高的热稳定性和较宽的液态范围。Five kinds of BrФnsted-acidic ionic liquids with different nitrogen-contained chemical groups and different anions were synthesized,and were respectively characterized by nuclear magnetic resonance（NMR）,infrared spectrum（IR）,electrospray ionization mass spectrum（ESI-MS）and thermogravimetry（TG）.It was found that ten kinds of ionic liquids were synthesized,whose structures were consistent with the designed ones.And all of their purities were more than 95%.These ionic liquids possess high thermal stability and wide liquid range,and their decomposition temperatures are higher than 300℃ except that the tempetature of [MPy]NO3 is 199℃ by thermogravimetry.

关 键 词：离子液体 红外光谱 核磁共振 电喷雾质谱 热重 

分 类 号：O657.61[理学—分析化学]