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Comment on “Does the Hydrated Electron Occupy a Cavity?”

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Science  18 Mar 2011:
Vol. 331, Issue 6023, pp. 1387
DOI: 10.1126/science.1197559

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Larsen et al. (Reports, 2 July 2010, p. 65) challenged the long-standing model of the solvent geometry surrounding a free electron in water using molecular dynamics simulations based on a newly derived electron-water pseudopotential. We illustrate that, in contrast to the model they used, the true electron-water interaction is repulsive in the region relevant to the reported extended electron distribution, consistent with the cavity model.

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