title: Triphilic Ionic-Liquid Mixtures: Fluorinated and Non-fluorinated Aprotic Ionic-Liquid Mixtures.
abstract: We present here the possibility of forming triphilic mixtures from alkyl- and fluoroalkylimidazolium ionic liquids, thus, macroscopically homogeneous mixtures for which instead of the often observed two domains-polar and nonpolar-three stable microphases are present: polar, lipophilic, and fluorous ones. The fluorinated side chains of the cations indeed self-associate and form domains that are segregated from those of the polar and alkyl domains. To enable miscibility, despite the generally preferred macroscopic separation between fluorous and alkyl moieties, the importance of strong hydrogen bonding is shown. As the long-range structure in the alkyl and fluoroalkyl domains is dependent on the composition of the liquid, we propose that the heterogeneous, triphilic structure can be easily tuned by the molar ratio of the components. We believe that further development may allow the design of switchable, smart liquids that change their properties in a predictable way according to their composition or even their environment.
authors: Mulliken Center for Theoretical Chemistry, Rheinische Friedrich-Wilhelms-Universität Bonn, Beringstr. 4+6, 53115, Bonn, Germany.
authors: Oldamur
authors: O
authors: Hollóczki
authors: Mulliken Center for Theoretical Chemistry, Rheinische Friedrich-Wilhelms-Universität Bonn, Beringstr. 4+6, 53115, Bonn, Germany.
authors: Marina
authors: M
authors: Macchiagodena
authors: Mulliken Center for Theoretical Chemistry, Rheinische Friedrich-Wilhelms-Universität Bonn, Beringstr. 4+6, 53115, Bonn, Germany.
authors: Henry
authors: H
authors: Weber
authors: Mulliken Center for Theoretical Chemistry, Rheinische Friedrich-Wilhelms-Universität Bonn, Beringstr. 4+6, 53115, Bonn, Germany.
authors: Martin
authors: M
authors: Thomas
authors: Helmholtz-Zentrum für Umweltforschung Leipzig, Department Ökologische Chemie, Permoserstrasse 15, 04318, Leipzig, Germany.
authors: Martin
authors: M
authors: Brehm
authors: SMRI Sugarcane Biorefinery Research Chair, University of KwaZulu-Natal, College of Agriculture, Engineering and Science School of Engineering, Howard College Campus, Durban, South Africa.
authors: Annegret
authors: A
authors: Stark
authors: Department of Chemistry, Sapienza University of Rome, 00185, Rome, Italy.
authors: Olga
authors: O
authors: Russina
authors: Laboratorio Liquidi Ionici, Istituto Struttura della Materia, Consiglio Nazionale delle Ricerche, 00133, Rome, Italy.
authors: Alessandro
authors: A
authors: Triolo
authors: Mulliken Center for Theoretical Chemistry, Rheinische Friedrich-Wilhelms-Universität Bonn, Beringstr. 4+6, 53115, Bonn, Germany. kirchner@thch.uni-bonn.de.
authors: Barbara
authors: B
authors: Kirchner
keywords: ionic liquids; microphases; molecular dynamics; nanosegregation fluorination; simulations microheterogen