Gross, Emily and Driver, Mark D. and Saif, Areesha and Evans, Oliver N. and Hunter, Christopher A. (2025) Solvation energies from atomic surface site interaction points. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 27 (17). pp. 8844-8855. ISSN 1463-9076, 1463-9084
Full text not available from this repository. (Request a copy)Abstract
The surface site interaction model for liquids at equilibrium (SSIMPLE) is a method for calculating thermodynamic properties in a fluid phase based on the use of surface site interaction points (SSIP) to represent all of the non-covalent interactions that molecules make with the environment. Interactions between the SSIPs of two different molecules are governed by a non-polar term and a polar term. Here the formulation originally made for room temperature liquids is generalized to any temperature. We show that the non-polar interaction term is temperature independent while the polar interaction term depends on temperature. This formulation was used to develop a description of the temperature dependence of fluid phase density in terms of an expansion energy, which is based on net intermolecular SSIP interactions. The method is shown to accurately model the temperature dependence of experimentally measured association constants for the formation of 1 : 1 H-bonded complexes in carbon tetrachloride. The atomic interaction point (AIP) version of the SSIP descripiton of 171 different compounds was used in SSIMPLE to calculate room temperature liquid densities that are in good agreement with experimental data. Since non-covalent interactions in the vapour phase can be treated in the same way as liquid phase interactions, SSIMPLE can also be used to calcuate vapour-liquid equilibria (VLE). Experimental VLE data for 196 binary mixtures of 30 miscible compounds was collected, and SSIMPLE was shown to reproduce the experimental behaviour well.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | HYDROGEN-BOND ASSOCIATION; VAPOR-LIQUID-EQUILIBRIA; DISSIPATIVE PARTICLE DYNAMICS; EQUATION-OF-STATE; UNIFAC GROUP-CONTRIBUTION; FORM ADDITION COMPOUNDS; PERTURBED-CHAIN SAFT; PHOSPHORYL COMPOUNDS; ORGANOPHOSPHORUS COMPOUNDS; CARBONYL-COMPOUNDS |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry VI - Physical Chemistry (Solution Chemistry) > Prof. Dr. Werner Kunz |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 15 Jul 2026 08:18 |
| Last Modified: | 15 Jul 2026 08:18 |
| URI: | https://pred.uni-regensburg.de/id/eprint/66870 |
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