Polarity Measurement for Ionic Liquids Containing Dissociable Protons
- 2 October 2004
- journal article
- Published by Oxford University Press (OUP) in Chemistry Letters
- Vol. 33 (11), 1414-1415
- https://doi.org/10.1246/cl.2004.1414
Abstract
Polarity of a series of ionic liquids (ILs) prepared by neutralization of N-alkylimidazoles and acids was measured with solvatochromic dye, Nile Red. Polarity of the N-alkylimidazolium salt-type ILs was in the comparable range to that of N,N′-dialkylimidazolium salt-type ILs. In the range, higher polarity was found when stronger acid (small pKa value in water) was used. This is the first report on the polarity of ILs containing dissociable protons.Keywords
This publication has 23 references indexed in Scilit:
- Application of Low-Viscosity Ionic Liquid to the Electrolyte of Double-Layer CapacitorsJournal of the Electrochemical Society, 2003
- Ion conductive characteristics of ionic liquids prepared by neutralization of alkylimidazolesSolid State Ionics, 2002
- Preparation and Characterization of New Room Temperature Ionic LiquidsChemistry – A European Journal, 2002
- Characterization and comparison of hydrophilic and hydrophobic room temperature ionic liquids incorporating the imidazolium cationGreen Chemistry, 2001
- High-Temperature Proton Conducting Membranes Based on Perfluorinated Ionomer Membrane-Ionic Liquid CompositesJournal of the Electrochemical Society, 2000
- Preparation of Novel Room-Temperature Molten Salts by Neutralization of AminesJournal of the Electrochemical Society, 2000
- Room-Temperature Ionic Liquids. Solvents for Synthesis and CatalysisChemical Reviews, 1999
- Electrochemical Properties of Imidazolium Salt Electrolytes for Electrochemical Capacitor ApplicationsJournal of the Electrochemical Society, 1999
- Ionic Liquids for Clean TechnologyJournal of Chemical Technology & Biotechnology, 1997
- Hydrophobic, Highly Conductive Ambient-Temperature Molten SaltsInorganic Chemistry, 1996