Understanding X-ray absorption in liquid water using triple excitations in multilevel coupled cluster theory.


Journal

Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555

Informations de publication

Date de publication:
26 Apr 2024
Historique:
received: 04 08 2023
accepted: 03 04 2024
medline: 27 4 2024
pubmed: 27 4 2024
entrez: 26 4 2024
Statut: epublish

Résumé

X-ray absorption (XA) spectroscopy is an essential experimental tool to investigate the local structure of liquid water. Interpretation of the experiment poses a significant challenge and requires a quantitative theoretical description. High-quality theoretical XA spectra require reliable molecular dynamics simulations and accurate electronic structure calculations. Here, we present the first successful application of coupled cluster theory to model the XA spectrum of liquid water. We overcome the computational limitations on system size by employing a multilevel coupled cluster framework for large molecular systems. Excellent agreement with the experimental spectrum is achieved by including triple excitations in the wave function and using molecular structures from state-of-the-art path-integral molecular dynamics. We demonstrate that an accurate description of the electronic structure within the first solvation shell is sufficient to successfully model the XA spectrum of liquid water within the multilevel framework. Furthermore, we present a rigorous charge transfer analysis of the XA spectrum, which is reliable due to the accuracy and robustness of the electronic structure methodology. This analysis aligns with previous studies regarding the character of the prominent features of the XA spectrum of liquid water.

Identifiants

pubmed: 38670938
doi: 10.1038/s41467-024-47690-x
pii: 10.1038/s41467-024-47690-x
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

3551

Subventions

Organisme : EC | EU Framework Programme for Research and Innovation H2020 | H2020 Priority Excellent Science | H2020 European Research Council (H2020 Excellent Science - European Research Council)
ID : 101020016
Organisme : Norges Forskningsråd (Research Council of Norway)
ID : 275506
Organisme : Vetenskapsrådet (Swedish Research Council)
ID : 2021-04521
Organisme : EC | EU Framework Programme for Research and Innovation H2020 | H2020 Priority Excellent Science | H2020 Marie Skłodowska-Curie Actions (H2020 Excellent Science - Marie Skłodowska-Curie Actions)
ID : 860553

Informations de copyright

© 2024. The Author(s).

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Auteurs

Sarai Dery Folkestad (SD)

Department of Chemistry, Norwegian University of Science and Technology, NTNU, 7491, Trondheim, Norway.

Alexander C Paul (AC)

Department of Chemistry, Norwegian University of Science and Technology, NTNU, 7491, Trondheim, Norway.

Regina Paul Née Matveeva (R)

Department of Chemistry, Norwegian University of Science and Technology, NTNU, 7491, Trondheim, Norway.

Sonia Coriani (S)

Department of Chemistry, Technical University of Denmark, DTU, 2800, Kongens Lyngby, Denmark.

Michael Odelius (M)

Department of Physics, Stockholm University, 10691, Stockholm, Sweden.

Marcella Iannuzzi (M)

Department of Chemistry, University of Zurich, 8057, Zürich, Switzerland.

Henrik Koch (H)

Department of Chemistry, Norwegian University of Science and Technology, NTNU, 7491, Trondheim, Norway. henrik.koch@ntnu.no.

Classifications MeSH