Alkyltrioctylphosphonium chloride ionic liquids: synthesis and physicochemical properties
作者:Gabriela Adamová、Ramesh L. Gardas、Luís Paulo N. Rebelo、Allan J. Robertson、Kenneth R. Seddon
DOI:10.1039/c1dt10332f
日期:——
A series of alkyltrioctylphosphonium chloride ionic liquids, prepared from trioctylphosphine, and the respective 1-chloroalkane (CnH2n+1Cl), where n = 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12 or 14, is presented. The cynosure of this work is the manner in which the variable chain length impacts the physical properties, such as melting points/glass transitions, thermal stability, density and viscosity. Experimental density and viscosity data were interpreted using QPSR correlations and group contribution methods. We present the first example of an empirical alternation effect for ionic liquids.
一系列烷基三亚甲基膦氯化物离子液体,由三亚甲基膦和相应的1-氯烷烃(CnH2n+1Cl,其中n = 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12或14)制备而成。本工作的焦点在于可变链长如何影响物理性质,如熔点/玻璃化转变、热稳定性、密度和粘度。通过QPSR相关性和基团贡献方法解释了实验密度和粘度数据。我们首次展示了离子液体的经验交替效应的实例。