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Equilibrium of Contact and Solvent‐Separated Ion Pairs in Mixtures of Protic Ionic Liquids and Molecular Solvents Controlled by Polarity
Author(s) -
Fumino Koichi,
Stange Peter,
Fossog Verlaine,
Hempelmann Rolf,
Ludwig Ralf
Publication year - 2013
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201303944
Subject(s) - polarity (international relations) , ionic liquid , solvent , ion , ionic bonding , chemistry , solvent polarity , chemical physics , organic chemistry , catalysis , biochemistry , cell
Polarity controls the equilibrium constants and free energies of contact ion pairs (CIPs) and solvent‐separated ion pairs (SIPs) in mixtures of protic ionic liquids and molecular solvents. The subtle balance between the ionic species was studied by far‐infrared difference spectra and related DFT‐calculated properties for solvents of low and high polarity and for different solvent concentrations.