Accessing the accuracy of density functional theory through structure and dynamics of the water-air interface

Ohto T, Dodia M, Xu J, Imoto S, Tang F, Zysk F, Kühne TD, Shigeta Y, Bonn M, Wu X, Nagata Y (2019)


Publication Type: Journal article

Publication year: 2019

Journal

Book Volume: 10

Pages Range: 4914-4919

Journal Issue: 17

DOI: 10.1021/acs.jpclett.9b01983

Abstract

Density functional theory-based molecular dynamics simulations are increasingly being used for simulating aqueous interfaces. Nonetheless, the choice of the appropriate density functional, critically affecting the outcome of the simulation, has remained arbitrary. Here, we assess the performance of various exchange-correlation (XC) functionals, based on the metrics relevant to sum-frequency generation spectroscopy. The structure and dynamics of water at the water-air interface are governed by heterogeneous intermolecular interactions, thereby providing a critical benchmark for XC functionals. We find that the XC functionals constrained by exact functional conditions (revPBE and revPBE0) with the dispersion correction show excellent performance. The poor performance of the empirically optimized density functional (M06-L) indicates the importance of satisfying the exact functional condition. Understanding the performance of different XC functionals can aid in resolving the controversial interpretation of the interfacial water structure and direct the design of novel, improved XC functionals better suited to describing the heterogeneous interactions in condensed phases.

Involved external institutions

How to cite

APA:

Ohto, T., Dodia, M., Xu, J., Imoto, S., Tang, F., Zysk, F.,... Nagata, Y. (2019). Accessing the accuracy of density functional theory through structure and dynamics of the water-air interface. Journal of Physical Chemistry Letters, 10(17), 4914-4919. https://doi.org/10.1021/acs.jpclett.9b01983

MLA:

Ohto, Tatsuhiko, et al. "Accessing the accuracy of density functional theory through structure and dynamics of the water-air interface." Journal of Physical Chemistry Letters 10.17 (2019): 4914-4919.

BibTeX: Download