Computation of methodology\hyphen independent ionic solvation free energies from molecular simulations. Kastenholz, M. A. & Hünenberger, P. H. doi abstract bibtex The computation of ionic solvation free energies from atomistic simulations is a surprisingly difficult problem that has found no satisfactory solution for more than 15 years. The reason is that the charging free energies evaluated from such simulations are affected by very large errors. One of these is related to the choice of a specific convention for summing up the contributions of solvent charges to the electrostatic potential in the ionic cavity, namely, on the basis of point charges within entire solvent molecules (M scheme) or on the basis of individual point charges (P scheme). The use of an inappropriate convention may lead to a charge-independent offset in the calculated potential, which depends on the details of the summation scheme, on the quadrupole-moment trace of the solvent molecule, and on the approximate form used to represent electrostatic interactions in the system. However, whether the M or P scheme (if any) represents the appropriate convention is still a matter of on-going debate. The goal of the present article is to settle this long-standing controversy by carefully analyzing (both analytically and numerically) the properties of the electrostatic potential in molecular liquids (and inside cavities within them).
@article{kastenholz,
author = {Kastenholz, M. A. and H{\"u}nenberger, Philippe H.},
title = {Computation of methodology\hyphen independent ionic solvation
free energies from molecular simulations},
journaltitle = jchph,
date = 2006,
subtitle = {{I}. {The} electrostatic potential in molecular liquids},
volume = 124,
eid = 124106,
doi = {10.1063/1.2172593},
langid = {english},
langidopts = {variant=american},
indextitle = {Computation of ionic solvation free energies},
annotation = {An \texttt{article} entry with an \texttt{eid} and a
\texttt{doi} field. Note that the \textsc{doi} is transformed
into a clickable link if \texttt{hyperref} support has been
enabled},
abstract = {The computation of ionic solvation free energies from
atomistic simulations is a surprisingly difficult problem that
has found no satisfactory solution for more than 15 years. The
reason is that the charging free energies evaluated from such
simulations are affected by very large errors. One of these is
related to the choice of a specific convention for summing up
the contributions of solvent charges to the electrostatic
potential in the ionic cavity, namely, on the basis of point
charges within entire solvent molecules (M scheme) or on the
basis of individual point charges (P scheme). The use of an
inappropriate convention may lead to a charge-independent
offset in the calculated potential, which depends on the
details of the summation scheme, on the quadrupole-moment
trace of the solvent molecule, and on the approximate form
used to represent electrostatic interactions in the
system. However, whether the M or P scheme (if any) represents
the appropriate convention is still a matter of on-going
debate. The goal of the present article is to settle this
long-standing controversy by carefully analyzing (both
analytically and numerically) the properties of the
electrostatic potential in molecular liquids (and inside
cavities within them).},
}
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Note that the \\textscdoi is transformed into a clickable link if \\texttthyperref support has been enabled","abstract":"The computation of ionic solvation free energies from atomistic simulations is a surprisingly difficult problem that has found no satisfactory solution for more than 15 years. The reason is that the charging free energies evaluated from such simulations are affected by very large errors. One of these is related to the choice of a specific convention for summing up the contributions of solvent charges to the electrostatic potential in the ionic cavity, namely, on the basis of point charges within entire solvent molecules (M scheme) or on the basis of individual point charges (P scheme). The use of an inappropriate convention may lead to a charge-independent offset in the calculated potential, which depends on the details of the summation scheme, on the quadrupole-moment trace of the solvent molecule, and on the approximate form used to represent electrostatic interactions in the system. However, whether the M or P scheme (if any) represents the appropriate convention is still a matter of on-going debate. The goal of the present article is to settle this long-standing controversy by carefully analyzing (both analytically and numerically) the properties of the electrostatic potential in molecular liquids (and inside cavities within them).","bibtex":"@article{kastenholz,\n author = {Kastenholz, M. A. and H{\\\"u}nenberger, Philippe H.},\n title = {Computation of methodology\\hyphen independent ionic solvation\n free energies from molecular simulations},\n journaltitle = jchph,\n date = 2006,\n subtitle = {{I}. {The} electrostatic potential in molecular liquids},\n volume = 124,\n eid = 124106,\n doi = {10.1063/1.2172593},\n langid = {english},\n langidopts = {variant=american},\n indextitle = {Computation of ionic solvation free energies},\n annotation = {An \\texttt{article} entry with an \\texttt{eid} and a\n \\texttt{doi} field. Note that the \\textsc{doi} is transformed\n into a clickable link if \\texttt{hyperref} support has been\n enabled},\n abstract = {The computation of ionic solvation free energies from\n atomistic simulations is a surprisingly difficult problem that\n has found no satisfactory solution for more than 15 years. The\n reason is that the charging free energies evaluated from such\n simulations are affected by very large errors. One of these is\n related to the choice of a specific convention for summing up\n the contributions of solvent charges to the electrostatic\n potential in the ionic cavity, namely, on the basis of point\n charges within entire solvent molecules (M scheme) or on the\n basis of individual point charges (P scheme). The use of an\n inappropriate convention may lead to a charge-independent\n offset in the calculated potential, which depends on the\n details of the summation scheme, on the quadrupole-moment\n trace of the solvent molecule, and on the approximate form\n used to represent electrostatic interactions in the\n system. However, whether the M or P scheme (if any) represents\n the appropriate convention is still a matter of on-going\n debate. The goal of the present article is to settle this\n long-standing controversy by carefully analyzing (both\n analytically and numerically) the properties of the\n electrostatic potential in molecular liquids (and inside\n cavities within them).},\n}\n\n","author_short":["Kastenholz, M. A.","Hünenberger, P. H."],"bibbaseid":"kastenholz-hnenberger-computationofmethodologyhyphenindependentionicsolvationfreeenergiesfrommolecularsimulations","role":"author","urls":{},"metadata":{"authorlinks":{}}},"bibtype":"article","biburl":"https://bibbase.org/f/vTLWHbrD4oRr5YGwZ/uploaded.bib","dataSources":["8zL55m9buvrY6zRhu","cJ6LYRLJpSChhwSoy","DwbKXqN9YyN8gkNab"],"keywords":[],"search_terms":["computation","methodology","hyphen","independent","ionic","solvation","free","energies","molecular","simulations","kastenholz","hünenberger"],"title":"Computation of methodology\\hyphen independent ionic solvation free energies from molecular simulations","year":null}