Benchmarking and optimization of molecular simulation models of zinc dialkyldithiophosphate and calcium sulfonate oil additives

Journal article


Publication Details

Author(s): Ectors P, Zahn D
Journal: Journal of Molecular Modeling
Publication year: 2019
Volume: 25
Journal issue: 4
ISSN: 1610-2940


Abstract

We present an ab initio based molecular mechanics model for prominent additives used in lubricants to moderate oil-steel interfaces. The force field is created for zinc dialkyldithiophosphate and calcium sulfonate charge neutral ligand-ion-ligand complexes and benchmarked to the widely spread generalized amber force field (GAFF). For the latter, comparison to quantum chemical calculations shows significant errors in terms of complex structure and formation energy. This is corrected by the newly created force field that is commensurate with GAFF but uses tailor-made ion-ligand van der Waals parameters. On this basis, we elucidate the association of additives with oil-hematite interfaces from molecular dynamics simulations.


FAU Authors / FAU Editors

Ectors, Philipp Dr.
Lehrstuhl für Theoretische Chemie
Zahn, Dirk Prof. Dr.
Professur für Theoretische Chemie


How to cite

APA:
Ectors, P., & Zahn, D. (2019). Benchmarking and optimization of molecular simulation models of zinc dialkyldithiophosphate and calcium sulfonate oil additives. Journal of Molecular Modeling, 25(4). https://dx.doi.org/10.1007/s00894-019-3980-0

MLA:
Ectors, Philipp, and Dirk Zahn. "Benchmarking and optimization of molecular simulation models of zinc dialkyldithiophosphate and calcium sulfonate oil additives." Journal of Molecular Modeling 25.4 (2019).

BibTeX: 

Last updated on 2019-10-04 at 04:08