Journal
CHEMICAL PHYSICS LETTERS
Volume 561, Issue -, Pages 1-13Publisher
ELSEVIER
DOI: 10.1016/j.cplett.2013.01.008
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Funding
- NSF [CHE-1011746]
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [1011746] Funding Source: National Science Foundation
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The surface potential at the water liquid-vapor interface is discussed in relation to experimental determinations of bulk absolute ion hydration free energies. It is shown that, rather than the surface potential itself, the net electrostatic potential at the center of an uncharged solute can aid both in relating differences between tabulations of hydration free energies and in explaining differing classical and quantum surface potential estimates. Quantum mechanical results for the net potential are consistent with conclusions from previous classical simulations, suggesting a contribution from the net potential that can influence ion density profiles for single ions in water droplets. (C) 2013 Elsevier B. V. All rights reserved.
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