Coarse-grained Interaction Potentials for Anisotropic Molecules

Details Coarse-grained Interaction Potentials for Anisotropic Molecules Coarse-grained Interaction Potentials for Anisotropic Molecules

2006-02-13

arxiv.org/abs/cond-mat/0602308v1

J. Chem. Phys. 124, 174708 (2006)

Physics

Condensed Matter

Soft Condensed Matter

8 pages, 4 tables and 6 figures. To appear in J. Chem. Phys

Scientific paper

10.1063/1.2179075

We have proposed an efficient parameterization method for a recent variant of the Gay-Berne potential for dissimilar and biaxial particles and demonstrated it for a set of small organic molecules. Compared to the previously proposed coarse-grained models, the new potential exhibits a superior performance in close contact and large distant interactions. The repercussions of thermal vibrations and elasticity has been studied through a statistical method. The study justifies that the potential of mean force is representable with the same functional form, extending the application of this coarse-grained description to a broader range of molecules. Moreover, the advantage of employing coarse-grained models over truncated atomistic summations with large distance cutoffs has been briefly studied.

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