Dynamics of Imidazolium Ionic Liquids from a Combined Dielectric Relaxation and Optical Kerr Effect Study: Evidence for Mesoscopic Aggregation

• Published in: Journal of the American Chemical Society Vol. 131; no. 31; pp. 11140 - 11146
• Main Authors: Turton, David A, Hunger, Johannes, Stoppa, Alexander, Hefter, Glenn, Thoman, Andreas, Walther, Markus, Buchner, Richard, Wynne, Klaas
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 12.08.2009

We have measured the intermolecular dynamics of the 1,3-dialkylimidazolium-based room-temperature ionic liquids (RTILs) [emim][BF4], [emim][DCA], and [bmim][DCA] at 25 °C from below 1 GHz to 10 THz by ultrafast optical Kerr effect (OKE) spectroscopy and dielectric relaxation spectroscopy (DRS) augme...