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Related Experiment Video

Updated: Jan 29, 2026

Preparation of Primary Neurons for Visualizing Neurites in a Frozen-hydrated State Using Cryo-Electron Tomography

Preparation of Primary Neurons for Visualizing Neurites in a Frozen-hydrated State Using Cryo-Electron Tomography

Published on: February 12, 2014

Dynamics of the Bulk Hydrated Electron from Many-Body Wave-Function Theory.

Jan Wilhelm^1,2, Joost VandeVondele³, Vladimir V Rybkin¹

¹Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland.

Angewandte Chemie (International Ed. in English)

|February 19, 2019

Summary

The hydrated electron forms a stable tetrahedral cavity of four water molecules, confirmed by advanced simulations. This structure explains its properties and resolves long-standing scientific debate.

Keywords:

ab initio molecular dynamics hydrated electrons many-body electronic structure theory quantum chemistry radical chemistry

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Area of Science:

Physical Chemistry
Computational Chemistry
Chemical Physics

Background:

The structure of the hydrated electron remains elusive due to its short lifetime and low concentration.
Experimental observation is challenging, leading to ongoing debate about its molecular arrangement.

Purpose of the Study:

To provide conclusive evidence for the structural model of the bulk hydrated electron.
To investigate the formation dynamics and properties of the hydrated electron in liquid water.

Main Methods:

First molecular dynamics simulation of the bulk hydrated electron.
Utilized correlated wave-function theory for high-accuracy calculations.
Analyzed cavity formation, H-H bond characteristics, and spectroscopic signatures.

Main Results:

Conclusive evidence for a persistent tetrahedral cavity formed by four water molecules.
Demonstrated the absence of stable non-cavity structures.
Observed rapid cavity formation (<1 picosecond) with intermediate less-regular cavities.
Correlated cavity structure with H-H bonds and distinct spectroscopic signatures.
Simulated negative spin density and gyration radius matching experimental data.

Conclusions:

The hydrated electron predominantly exists within a stable tetrahedral water cavity.
Simulation results align with experimental observations, resolving structural ambiguities.
The study provides a detailed molecular-level understanding of the hydrated electron.