1-(吡啶鎓基)-6-(3-甲基咪唑鎓)己烷六氟磷酸盐的合成与热力学性质  

Synthesis and thermodynamic property of [1-(1-Pyridinium-yl-propyl)-6-methylimidazolium] hexane dihexafluorophosphate

作　　者：王军[1] 武金超[1] 杨许召[1] 邹文苑[1] 王满满[1] 

机构地区：[1]郑州轻工业学院河南省表界面科学重点实验室,郑州450002

出　　处：《化工新型材料》2014年第7期120-122,共3页New Chemical Materials

基　　金：国家自然科学基金(21176228)

摘　　要：合成了一种非对称双阳离子型离子液体1-(吡啶鎓基)-6-(3-甲基咪唑鎓)己烷六氟磷酸盐,进行了IR和1H-NMR表征。利用热重分析法(TG),测定了高纯氮气气氛下该离子液体的热稳定性,其初始分解温度为601.15K。通过差示扫描量热仪(DSC)测定了该离子液体在温度区间313.15-543.15K的热容,得到了熔点,相变焓和相变熵。通过对固相区和液相区的热容数据进行多项式拟合,得到了以298.15K为参考温度的热力学方程。Asymmetrical dicationic ionic liquid [1-（1-Pyridinium-yl-propyl）-6-methylimidazolium]hexane dihexaflu- orophosphate has been synthesized,and the ionic liquid was characterized by IR and 1^H NMR. The thermal stability was studied using thermogravimetric analysis （TG） under the atmosphere of highly pure nitrogen,and initial degradation tern perature was 601.15 K. The heat capacity of the ionic liquid was determined by differential scanning calorimeter （DSC） at 313.15-543.15 K,the melting point,molar enthalpy and entropy of fusion were obtained, respectively. The molar heat capacities of the ionic liquid at solid and liquid phase were fitted to polynomials, and the thermodynamic functions relative to the reference temperature 298.15 K were derived based on the heat capacities.

关 键 词：非对称 双阳离子型 离子液体 合成 热容 

分 类 号：O645.1[理学—物理化学]