Jump to main content
Jump to site search

Issue 19, 2016
Previous Article Next Article

Determination of Kamlet–Taft parameters for selected solvate ionic liquids

Author affiliations

Abstract

The normalised polarity ENT and Kamlet–Taft parameters of recently described solvate ionic liquids, composed of lithium bis(trifluoromethyl)sulfonimide (LiTFSI) in tri- (G3TFSI) or tetraglyme (G4TFSI) have been determined and compared to the parent glyme (G3 and G4). We show that these solvate ionic liquids have a high polarity (G3TFSI, (ENT) = 1.03; G4TFSI, (ENT) = 1.03) and display very high electron pair accepting characteristics (G3TFSI, α = 1.32; G4TFSI, α = 1.35). Molecular dynamics simulations suggest that the chelated lithium cation is responsible for this observation. The relatively small hydrogen bond acceptor (β) values for these systems (G3TFSI, β = 0.41; G4TFSI, β = 0.37) are thought to be due primarily to the TFSI anion, which is supplemented slightly by the glyme oxygen atom. In addition, these solvate ionic liquids are found to have a high polarisability (G3TFSI, π* = 0.94; G4TFSI, π* = 0.90).

Graphical abstract: Determination of Kamlet–Taft parameters for selected solvate ionic liquids

Back to tab navigation

Supplementary files

Publication details

The article was received on 23 Feb 2016, accepted on 19 Apr 2016 and first published on 20 Apr 2016


Article type: Communication
DOI: 10.1039/C6CP01216G
Phys. Chem. Chem. Phys., 2016,18, 13153-13157

  •   Request permissions

    Determination of Kamlet–Taft parameters for selected solvate ionic liquids

    D. J. Eyckens, B. Demir, T. R. Walsh, T. Welton and L. C. Henderson, Phys. Chem. Chem. Phys., 2016, 18, 13153
    DOI: 10.1039/C6CP01216G

Search articles by author

Spotlight

Advertisements