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Title: Spicing up continuum solvation models with SaLSA: The spherically averaged liquid susceptibility ansatz

Journal Article · · Journal of Chemical Physics
DOI:https://doi.org/10.1063/1.4906828· OSTI ID:1370450

Continuum solvation models enable electronic structure calculations of systems in liquid environments, but because of the large number of empirical parameters, they are limited to the class of systems in their fit set (typically organic molecules). Here, we derive a solvation model with no empirical parameters for the dielectric response by taking the linear response limit of a classical density functional for molecular liquids. This model directly incorporates the nonlocal dielectric response of the liquid using an angular momentum expansion, and with a single fit parameter for dispersion contributions it predicts solvation energies of neutral molecules with a RMS error of 1.3 kcal/mol in water and 0.8 kcal/mol in chloroform and carbon tetrachloride. We show that this model is more accurate for strongly polar and charged systems than previous solvation models because of the parameter-free electric response, and demonstrate its suitability for ab initio solvation, including self-consistent solvation in quantum Monte Carlo calculations.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Energy Materials Center at Cornell (EMC2)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0001086
OSTI ID:
1370450
Alternate ID(s):
OSTI ID: 1228514
Journal Information:
Journal of Chemical Physics, Vol. 142, Issue 5; Related Information: Emc2 partners with Cornell University (lead); Lawrence Berkeley National Laboratory; ISSN 0021-9606
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 41 works
Citation information provided by
Web of Science

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Computational Approaches to Photoelectrode Design through Molecular Functionalization for Enhanced Photoelectrochemical Water Splitting journal November 2018
Continuum embeddings in condensed-matter simulations journal October 2018
Modelling heterogeneous interfaces for solar water splitting journal January 2017
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Formic acid oxidation on platinum: a simple mechanistic study journal January 2015
The charge-asymmetric nonlocally determined local-electric (CANDLE) solvation model journal February 2015
First-principles electrostatic potentials for reliable alignment at interfaces and defects journal March 2017
Grand canonical electronic density-functional theory: Algorithms and applications to electrochemistry journal March 2017
Substrate effects on charged defects in two-dimensional materials journal August 2019
First-principles identification of localized trap states in polymer nanocomposite interfaces journal February 2020
First-principles electrostatic potentials for reliable alignment at interfaces and defects text January 2016
Grand canonical electronic density-functional theory: algorithms and applications to electrochemistry text January 2017
Solvent-Aware Interfaces in Continuum Solvation journal January 2019
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