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Quantum-Chemistry Based Calibration of the Alkali Metal Cation Series (Li+-Cs+) for Large-Scale Polarizable Molecular Mechanics/Dynamics Simulations

Dudev, Todor and Devereux, Mike and Meuwly, Markus and Lim, Carmay and Piquemal, Jean-Philip and Gresh, Nohad. (2015) Quantum-Chemistry Based Calibration of the Alkali Metal Cation Series (Li+-Cs+) for Large-Scale Polarizable Molecular Mechanics/Dynamics Simulations. Journal of Computational Chemistry, 36 (5). pp. 285-302.

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Official URL: http://edoc.unibas.ch/41806/

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Abstract

The alkali metal cations in the series Li(+)-Cs(+) act as major partners in a diversity of biological processes and in bioinorganic chemistry. In this article, we present the results of their calibration in the context of the SIBFA polarizable molecular mechanics/dynamics procedure. It relies on quantum-chemistry (QC) energy-decomposition analyses of their monoligated complexes with representative O-, N-, S-, and Se- ligands, performed with the aug-cc-pVTZ(-f) basis set at the Hartree-Fock level. Close agreement with QC is obtained for each individual contribution, even though the calibration involves only a limited set of cation-specific parameters. This agreement is preserved in tests on polyligated complexes with four and six O- ligands, water and formamide, indicating the transferability of the procedure. Preliminary extensions to density functional theory calculations are reported.
Faculties and Departments:05 Faculty of Science > Departement Chemie > Chemie > Physikalische Chemie (Meuwly)
UniBasel Contributors:Meuwly, Markus
Item Type:Article, refereed
Publisher:Wiley
ISSN:1096-987X
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:07 Dec 2016 10:59
Deposited On:25 Apr 2016 10:02

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