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Probing Thermal Interactions of Ionic Liquids with Dimethyl Sulfoxide
Author(s) -
Rai Gitanjali,
Kumar Anil
Publication year - 2012
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201100821
Subject(s) - ionic liquid , isothermal titration calorimetry , chemistry , dimethyl sulfoxide , solvent , ionic bonding , enthalpy , calorimetry , thermodynamics , inorganic chemistry , ion , organic chemistry , catalysis , physics
Interactions between ionic liquids and dimethyl sulfoxide (DMSO) are probed by isothermal titration calorimetry. The excess partial molar enthalpies of ionic liquids ${H_{{\rm{IL}}}^{\rm{E}} }$ in DMSO are discussed in terms of solute–solvent interactions. The specific interaction theory originally developed by Pitzer is used to analyze the apparent molar enthalpy ϕ L of ionic liquids in DMSO with the help of ion‐interaction parameters. Furthermore, quantitative information on solvent reorganization and clathrate formation is obtained and interpreted.