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Communication: Charge-population based dispersion interactions for molecules and materials

Journal Article · · Journal of Chemical Physics
DOI:https://doi.org/10.1063/1.4947214· OSTI ID:22660828
 [1]; ;  [2];
  1. Department of Chemistry, Yale University, New Haven, Connecticut 06520 (United States)
  2. Department Chemie, Technische Universität München, Lichtenbergstr. 4, D-85748 Garching (Germany)

We introduce a system-independent method to derive effective atomic C{sub 6} coefficients and polarizabilities in molecules and materials purely from charge population analysis. This enables the use of dispersion-correction schemes in electronic structure calculations without recourse to electron-density partitioning schemes and expands their applicability to semi-empirical methods and tight-binding Hamiltonians. We show that the accuracy of our method is en par with established electron-density partitioning based approaches in describing intermolecular C{sub 6} coefficients as well as dispersion energies of weakly bound molecular dimers, organic crystals, and supramolecular complexes. We showcase the utility of our approach by incorporation of the recently developed many-body dispersion method [Tkatchenko et al., Phys. Rev. Lett. 108, 236402 (2012)] into the semi-empirical density functional tight-binding method and propose the latter as a viable technique to study hybrid organic-inorganic interfaces.

OSTI ID:
22660828
Journal Information:
Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Journal Issue: 15 Vol. 144; ISSN JCPSA6; ISSN 0021-9606
Country of Publication:
United States
Language:
English

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Cited By (8)

Extension of the D3 dispersion coefficient model journal July 2017
Adhesion, forces and the stability of interfaces journal January 2019
Quantum mechanics of proteins in explicit water: The role of plasmon-like solute-solvent interactions journal December 2019
Correcting long-range electrostatics in DFTB journal June 2019
First-principles modeling of molecular crystals: structures and stabilities, temperature and pressure: First-principles modeling of molecular crystals
  • Hoja, Johannes; Reilly, Anthony M.; Tkatchenko, Alexandre
  • Wiley Interdisciplinary Reviews: Computational Molecular Science, Vol. 7, Issue 1 https://doi.org/10.1002/wcms.1294
journal December 2016
D cdftbmd : Divide‐and‐Conquer Density Functional Tight‐Binding Program for Huge‐System Quantum Mechanical Molecular Dynamics Simulations journal March 2019
Theory and practice of modeling van der Waals interactions in electronic-structure calculations journal January 2019
Quantum Mechanics of Proteins in Explicit Water: The Role of Plasmon-Like Solute-Solvent Interactions text January 2019

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