Thermodynamic Properties and Intermolecular Interactions of a Series of <i>N</i>-Butylammonium Carboxylate Ionic Liquids
作者:Ying Wei、Tongtong Xu、Xinyuan Zhang、Yang Di、Qingguo Zhang
DOI:10.1021/acs.jced.8b00583
日期:——
crystal energy, thermal expansion coefficient, standard molar entropy, and the surface properties are estimated by the empirical equations. The Vogel–Fulcher–Tamman (VFT) equation is used to explore the dependence of electrical conductivities and dynamic viscosities on temperature. The relationship between the molar conductivity and the fluidity of the ILs was examined through the use of Walden plots. To
一系列新Ñ -butylammonium羧酸离子液体(Ñ -butylammonium甲酸盐,Ñ -butylammonium乙酸盐,Ñ -butylammonium丙酸酯,和Ñ-丁酸丁铵铵)通过一步法合成并表征。测量IL的热力学性质,例如表面张力,密度,电导率和动态粘度,作为温度的函数。重要参数如分子体积,晶体能量,热膨胀系数,标准摩尔熵和表面性质通过经验方程式估算。Vogel-Fulcher-Tamman(VFT)方程用于探讨电导率和动态粘度对温度的依赖性。通过使用Walden图检查了IL的摩尔电导率和流动性之间的关系。描述N的分子间相互作用-丁基丁基羧酸铵离子液体,通过DFT计算可计算出离子液体的最佳结构和能量。计算出的能量表明,离子簇之间相互作用能的增加与实验粘度的趋势相同。