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Significant cation effects in carbon dioxide-ionic liquid systems.


ABSTRACT: Carbon dioxide-ionic liquid systems are of great current interest, and significant efforts have been made lately to understand the intermolecular interactions in these systems. In general, all the experimental and theoretical studies have concluded so far that the main solute-solvent interaction takes effect through the anion, and the cation has no, or only a secondary role in solvation. In this theoretical approach it is shown that this view is unfounded, and evidence is provided that, similarly to the benzene-CO(2) system, dispersion interactions are present between the solute and the cation. Therefore, this defines a novel site for tailoring solvents to tune CO(2) solubility.

SUBMITTER: Holloczki O 

PROVIDER: S-EPMC3597992 | biostudies-literature |

REPOSITORIES: biostudies-literature

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