High Frequency Dielectric Response of the Ionic Liquid N-Methyl-N-ethylpyrrolidinium Dicyanamide

Simon Schrödle; Gary Annat; Douglas R. MacFarlane; Maria Forsyth; Richard Buchner; Glenn Hefter

doi:10.1071/CH06251

RESEARCH FRONT

High Frequency Dielectric Response of the Ionic Liquid N-Methyl-N-ethylpyrrolidinium Dicyanamide

Simon Schrödle ^A , Gary Annat ^B , Douglas R. MacFarlane ^B , Maria Forsyth ^B , Richard Buchner ^C ^D and Glenn Hefter ^A ^D

+ Author Affiliations

- Author Affiliations

^A Chemistry Department, Murdoch University, Murdoch WA 6150, Australia.

^B School of Chemistry and Department of Materials Engineering, Monash University, Clayton VIC 3168, Australia.

^C Institut für Physikalische und Theoretische Chemie, Universität Regensburg, 93040 Regensburg, Germany.

^D Corresponding authors. Email: g.hefter@murdoch.edu.au; richard.buchner@chemie.uni-regensburg.de

Australian Journal of Chemistry 60(1) 6-8 https://doi.org/10.1071/CH06251
Submitted: 17 July 2006 Accepted: 19 October 2006 Published: 29 January 2007

Abstract

A study of the room-temperature ionic liquid N-methyl-N-ethylpyrrolidinium dicyanamide by dielectric relaxation spectroscopy over the frequency range 0.2 GHz ≤ ν ≤ 89 GHz has revealed that, in addition to the already known lower frequency processes, there is a broad featureless dielectric loss at higher frequencies. The latter is probably due to the translational (oscillatory) motions of the dipolar ions of the IL relative to each other, with additional contributions from their fast rotation.

References

High Frequency Dielectric Response of the Ionic Liquid N-Methyl-N-ethylpyrrolidinium Dicyanamide

Abstract

Subscriber Login