期刊
JOURNAL OF PHYSICAL CHEMISTRY B
卷 118, 期 6, 页码 1603-1611出版社
AMER CHEMICAL SOC
DOI: 10.1021/jp409545x
关键词
-
资金
- National Institutes of Health [1R01GM086707-01A1]
We have developed an automated parameter optimization software framework (ParOpt) that implements the Nelder-Mead simplex algorithm and applied it to a coarse-grained polarizable water model. The model employs a tabulated, modified Morse potential with decoupled short- and long-range interactions incorporating four water molecules per interaction site. Polarizability is introduced by the addition of a harmonic angle term defined among three charged points within each bead. The target function for parameter optimization was based on the experimental density, surface tension, electric field permittivity, and diffusion coefficient. The model was validated by comparison of statistical quantities with experimental observation. We found very good performance of the optimization procedure and good agreement of the model with experiment.
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