title: Tunable Aryl Alkyl Ionic Liquids with Weakly Coordinating Tetrakis((1,1,1,3,3,3-hexafluoropropan-2-yl)oxy)borate [B(hfip)4 ] Anions.
abstract: Weakly coordinating borate or aluminate anions have recently been shown to yield interesting properties of the resulting ionic liquids (ILs). The same is true for large phenyl-substituted imidazolium cations, which can be tuned by the choice, position, or number of substituents on the aromatic ring. We were therefore interested to combine these aryl alkyl imidazolium cations with the weakly coordinating tetrakis((1,1,1,3,3,3-hexafluoropropan-2-yl)oxy)borate [B(hfip)4 ](-) anions to study the physical properties and viscosities of these ionic liquids. Despite the large size and high molecular weight of these readily available ILs, they are liquid at room temperature and show remarkably low glass transition points and relatively high decomposition temperatures.
authors.affiliation: Physikalische Organische Chemie, Technische Universität Dresden, 01169, Dresden, Germany.
authors.forename: Maria
authors.initials: M
authors.lastname: Kaliner
authors.affiliation: Institut für Anorganische und Analytische Chemie und, Freiburger Materialforschungszentrum FMF, Albert-Ludwigs-Universität Freiburg, 79104, Freiburg im Breisgau, Germany.
authors.forename: Alexander
authors.initials: A
authors.lastname: Rupp
authors.affiliation: Institut für Anorganische und Analytische Chemie und, Freiburger Materialforschungszentrum FMF, Albert-Ludwigs-Universität Freiburg, 79104, Freiburg im Breisgau, Germany. krossing@uni-freiburg.de.
authors.forename: Ingo
authors.initials: I
authors.lastname: Krossing
authors.affiliation: Physikalische Organische Chemie, Technische Universität Dresden, 01169, Dresden, Germany. thomas.strassner@chemie.tu-dresden.de.
authors.forename: Thomas
authors.initials: T
authors.lastname: Strassner
keywords: TAAILs; aluminate anions; borate anions; imidazolium salts; ionic liquids