Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/67142
Type: Artigo de periódico
Title: Free energy calculation using Monte Carlo simulation
Author: Freitas, LCG
Silva, LB
Botelho, LD
Abstract: The combination of statistical perturbation theory and Monte Carlo method to calculate free energy of solvation is discussed. In the model presented the solvent-solvent and solute-solvent interaction energies are obtained from appropriated Lennard-Jones and coulomb potential functions. Molecular interactions beyond a suitable cut-off range are neglected and long-range correction for ion-solvent molecule interactions is included by using the Born solvation model. Free energies of hydration for methane and chloride ion were obtained in the NpT ensemble at T = 289K and p = 1.0 atm. The behavior of free energy of solvation as a function of the ion charge and ionic radius were investigated in methanol and acetonitrile. Tile results are in good agreement with qualitative predictions from the Born model. The influence of temperature in the energy of hydration was also investigated, The results are in very good agreement with theoretical and experimental data from literature.
Subject: liquid simulation
free energy of solvation
perturbation theory
Country: Brasil
Editor: Soc Brasileira Quimica
Rights: aberto
Date Issue: 1996
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.