Catalog Home Page

Dielectric relaxation in ionic liquids: signatures of liquid structure

MacFarlane, D.R., Annat, G., Forsyth, M., Izgorodina, E.I., Buchner, R., Schrödle, S. and Hefter, G.T. (2006) Dielectric relaxation in ionic liquids: signatures of liquid structure. In: 232nd National Meeting of the American Chemical Society, 10 - 14 September, San Francisco, CA, USA


Recent dielectric relaxation measurements on ionic liquids have shown that the dielectric response reflects a solution structure that is dominated by aggregates of ions. Despite the presence of some quite strongly polarised molecules, the dielectric constants measured for ionic liquids such as [emim]BF4 and mppy[dca] lies in the region of 10-15; this also reflects the degree of aggregation in the liquid and the limited degree of individual mobility possessed by each ion. This paper will discuss these recent results and their implications and correlate then with quantum mechanical calculations of the structure of the ions.

Publication Type: Conference Paper
Murdoch Affiliation: School of Chemical and Mathematical Science
Item Control Page Item Control Page