Liquid clathrate formation in ionic liquid–aromatic mixturesElectronic supplementary information (ESI) available: crystallographic information, CCDC 200588–200590. See http://www.rsc.org/suppdata/cc/b2/b212726a/ for crystallographic files in CIF or other electronic format.

Abstract

1-Alkyl-3-methylimidazolium containing ionic liquids with hexafluorophosphate, bis(trifyl)imide, tetrafluoroborate, and chloride anions form liquid clathrates when mixed with aromatic hydrocarbons; in the system 1,3-dimethylimidazolium hexafluorophosphate–benzene, the aromatic solute could be trapped in the solid state forming a crystalline 2∶1 inclusion compound.