TY - JOUR
T1 - Size dependence of the solvation free energies of large solutes
AU - Ben-Naim, Arieh
AU - Mazo, Robert M.
PY - 1993
Y1 - 1993
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=33645882691&partnerID=8YFLogxK
U2 - 10.1021/j100143a050
DO - 10.1021/j100143a050
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AN - SCOPUS:33645882691
SN - 0022-3654
VL - 97
SP - 10829
EP - 10834
JO - Journal of Physical Chemistry
JF - Journal of Physical Chemistry
IS - 41
ER -