Alkyltributylphosphonium chloride ionic liquids: synthesis, physicochemical properties and crystal structure?

Dalton Transactions Pub Date: 2012-06-07 DOI: 10.1039/C1DT10466G

Abstract

A series of alkyltributylphosphonium chloride ionic liquids, prepared from tributylphosphine and the respective 1-chloroalkane, CnH2n+1Cl (where n = 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12 or 14), is reported. This work is a continuation of an extended series of tetraalkylphosphonium ionic liquids, where the focus is on the variability of n and its impact on the physical properties, such as melting points/glass transitions, thermal stability, density and viscosity. Experimental density and viscosity data were interpreted using QPSR and group contribution methods and the crystal structure of propyl(tributyl)phosphonium chloride is detailed.

Graphical abstract: Alkyltributylphosphonium chloride ionic liquids: synthesis, physicochemical properties and crystal structure
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