Work

C –IBI: Targeting cumulative coordination within an iterative protocol to derive coarse-grained models of (multi-component) complex fluids

Year: 2016

Type: article

Abstract: We present a coarse-graining strategy that we test for aqueous mixtures. The method uses pair-wise cumulative coordination as a target function within an iterative Boltzmann inversion (IBI) like protocol. We name this method coordination iterative Boltzmann inversion (C-IBI). While the underlying coarse-grained model is still structure based and, thus, preserves pair-wise solution structure, our method also reproduces solvation thermodynamics of binary and/or ternary mixtures. Additionally, we observe much faster convergence within C-IBI compared to IBI. To validate the robustness, we apply C-IBI to study test cases of solvation thermodynamics of aqueous urea and a triglycine solvation in aqueous urea.

Source: The Journal of Chemical Physics

DOI: 10.1063/1.4947253

Authors: Tiago E. de Oliveira, Paulo A. Netz, Kurt Kremer, Christoph Junghans, Debashish Mukherji

Institutions: Universidade Federal do Rio Grande do Sul, Los Alamos National Laboratory, Max Planck Institute for Polymer Research

Language: English

Topic: Advanced Physical and Chemical Molecular Interactions

Subfield: Physical and Theoretical Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: green