Abstract
Monte Carlo statistical mechanics simulations have been carried out for Cl− and Na+ in clusters of 1–14 water molecules. OPLS potential functions were used including the TIP4P model of water that do not include explicit polarization effects. In contrast to a prior report with the same potential functions, the computed enthalpies of binding for Cl− are shown to agree closely with experimental data, while the values for Na+ are about 10% too exothermic. The latter discrepancy is largely removed by using Aqvist’s Na+ parameters with TIP3P water. Moreover, the structures of the clusters show the expected nonspherical distribution of water molecules.
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Dates
Type | When |
---|---|
Created | 23 years ago (July 26, 2002, 8:46 a.m.) |
Deposited | 1 year, 6 months ago (Feb. 6, 2024, 4:14 p.m.) |
Indexed | 1 year, 6 months ago (Feb. 11, 2024, 5:39 a.m.) |
Issued | 31 years, 11 months ago (Sept. 1, 1993) |
Published | 31 years, 11 months ago (Sept. 1, 1993) |
Published Print | 31 years, 11 months ago (Sept. 1, 1993) |
@article{Jorgensen_1993, title={Limited effects of polarization for Cl−(H2O)n and Na+(H2O)n clusters}, volume={99}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.466077}, DOI={10.1063/1.466077}, number={5}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Jorgensen, William L. and Severance, Daniel L.}, year={1993}, month=sep, pages={4233–4235} }