Size dependence of the solvation free energies of large solutes

Arieh Ben-Naim*, Robert M. Mazo

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

68 Scopus citations

Abstract

The solvation Gibbs free energy of linear molecules is shown to be a linear function of the length, or number of units, of the molecule when this length exceeds the correlation length of the solute due to the solvent. For large molecules in simple solvents, the solvation Gibbs energy, in leading order, scales as the solute volume, not the solute surface area, as might be expected. The solvation Gibbs energy, as determined from experimental measurements on solute concentrations in coexisting phases, needs no correction due to solute-solvent size ratio. A critique of a recent assertion to the contrary is presented.

Original languageEnglish
Pages (from-to)10829-10834
Number of pages6
JournalJournal of Physical Chemistry
Volume97
Issue number41
DOIs
StatePublished - 1993

Fingerprint

Dive into the research topics of 'Size dependence of the solvation free energies of large solutes'. Together they form a unique fingerprint.

Cite this