Crossref journal-article
AIP Publishing
The Journal of Chemical Physics (317)
Abstract

Ionic charging free energies calculated by Ewald summation differ substantially from those calculated in spherical cluster calculations, with or without the inclusion of a Born correction in the latter. Using Gauss’ law, we derive an electrostatic potential for ions in spherical clusters that involves contributions only from the interior solvent. This “interior” potential agrees with the “P-summation” approach proposed by Hummer et al. [J. Phys. Chem. B 101, 3017 (1997)], and leads to charging free energies which agree, within simulation error, with those given by Ewald summation with finite-size corrections. The difference in charging free energies between this approach and the conventional cluster free energies including the Born correction is traced to the surface potential of water.

Bibliography

Darden, T., Pearlman, D., & Pedersen, L. G. (1998). Ionic charging free energies: Spherical versus periodic boundary conditions. The Journal of Chemical Physics, 109(24), 10921–10935.

Authors 3
  1. Tom Darden (first)
  2. David Pearlman (additional)
  3. Lee G. Pedersen (additional)
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Dates
Type When
Created 23 years, 1 month ago (July 26, 2002, 8:17 a.m.)
Deposited 1 year, 6 months ago (Feb. 7, 2024, 7:43 a.m.)
Indexed 1 month, 3 weeks ago (July 1, 2025, 2:45 a.m.)
Issued 26 years, 8 months ago (Dec. 22, 1998)
Published 26 years, 8 months ago (Dec. 22, 1998)
Published Print 26 years, 8 months ago (Dec. 22, 1998)
Funders 0

None

@article{Darden_1998, title={Ionic charging free energies: Spherical versus periodic boundary conditions}, volume={109}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.477788}, DOI={10.1063/1.477788}, number={24}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Darden, Tom and Pearlman, David and Pedersen, Lee G.}, year={1998}, month=dec, pages={10921–10935} }