Journal article
Collins’s rule, Hofmeister effects and ionic dispersion interactions
Chemical Physics Letters, Vol.608, pp.55-59
2014
Abstract
Models based solely on electrostatics cannot explain ion specific properties of electrolyte solutions. We give calculations of dispersion interactions of ions with other ions and with water molecules. These are done via ab initio Symmetry Adapted Perturbation Theory with Density Functional Theory (DFT-SAPT). The calculations establish the substantial, specific contribution of dispersion interactions to ionic interactions. They explain several puzzling properties of electrolyte solutions: the variation in solvation energy among ions of the same size, the small repulsion of iodide from the air-water interface, and the affinity of large ions for each other in water embodied in Collins's rules.
Details
- Title
- Collins’s rule, Hofmeister effects and ionic dispersion interactions
- Authors/Creators
- T.T. Duignan (Author/Creator) - Australian National UniversityD.F. Parsons (Author/Creator) - Australian National UniversityB.W. Ninham (Author/Creator) - Australian National University
- Publication Details
- Chemical Physics Letters, Vol.608, pp.55-59
- Publisher
- Elsevier
- Identifiers
- 991005541211607891
- Copyright
- © 2014 Elsevier B.V.
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 2 Chemistry
- 2.89 Ionic, Molecular & Complex Liquids
- 2.89.677 Liquid Water
- Web Of Science research areas
- Chemistry, Physical
- Physics, Atomic, Molecular & Chemical
- ESI research areas
- Chemistry