"Ionic liquids will never find application in industry", "I don't understand this fad for ionic liquids" and "there is no widespread interest in these systems" are just three of quotes from the reports of referees for research proposals that I have received over the years. I wonder what these people think today. There are currently at least nine large-scale industrial uses of ionic liquids, including, we now rec- nise, the production of ?-Caprolactam (a monomer for the production of nylon-6) [1]. There has been a steady increase in the interest in ionic liquids for well over a decade and last year the number of papers and patents including ionic liquids was counted in the thousands. This remarkable achievement has been built on the hard work and enthusiasm, first of a small band of devotees, but now of huge numbers of scientists all over the world who do not see themselves as specialists in ionic liquids. The ionic liquids field continues to develop at an incredible rate. No sooner do I think that I am on top of the literature than it turns out that a whole new area of work has emerged without me noticing. Things that were once supposedly impos- 1 sible in ionic liquids, such as measuring the H NMR of solutes, are now widely applicable (see Chapter 8). Hence, collected volumes such as this are very w- come.

Inhalt

Bronya Clare, Amal Sirwardana and Douglas R. MacFarlane: Synthesis and Purification of Ionic Liquids.- Annegret Stark: Ionic Liquid Structure-induced Effects on Organic Reactions.- Mathieu Pucheault and Michel Vaultier: Task Specific Ionic Liquids and Task Specific Onium Salts.- Andreas Taubert: Heavy Elements in Ionic Liquids.- M. F. Costa Gomes, J. N. Canongia Lopes, A. A. H. Padua: Thermodynamics and Micro Heterogeneity of Ionic Liquids.- David Rooney, Johan Jacquemin and Ramesh Gardas: Thermophysical Properties of Ionic Liquids.- Barbara Kirchner: Ionic Liquids from Theoretical Investigations.- Ralf Giernoth: NMR Spectroscopy in Ionic Liquids.- Anja Mudring: Optical Spectroscopy and Ionic Liquids.- Suzie Su Yin Tan and Douglas R. MacFarlane: Ionic Liquids in Biomass Processing.-