Berlin 2015 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 51: P16: New Instruments and Methods
CPP 51.2: Poster
Mittwoch, 18. März 2015, 10:00–13:00, Poster A
Force field conversion and comparison — •Volker Lesch1, Carlos E. S. Bernardes2, Jose Nuno Canongia Lopes2, Marcello Sega3, Othmar Steinhauser3, Christian Schröder3, Luis Miguel Varela Cabo4, Hadrian Montes4, Trinidad Mendez-Morales4, and Andreas Heuer1 — 1Westfälische Wilhelms-Universität Münster — 2Universidade de Lisboa — 3Universität Wien — 4University of Santiago de Compostela
Force fields are the core of each molecular dynamics (MD) simulation but each MD-simulation package has its advantages and drawbacks. Therefore, sometimes a conversion of force fields is necessary which is very tedious and error-prone. Here, we present the conversion tool ForConX (force field based on XML structure). ForConX is written in Python and organized in different moduels for each of the following MD packages: Gromacs, Amber, Charmm, DL_POLY.
Several studies focused on the effect of polarization on simulation results. Here, for the first time we compare two optimized force field and elucidate the real gaps between non-polarizable and polarizable MD-simulations. More specifically, we focus on the limits describing structure and dynamics of the optimized non-polarizable force field OPLS-AA and the optimized polarizable force field APPLE&P.