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arXiv · 1906.08767

Relaxation dynamics and genuine properties of the solvated electron in neutral water clusters

Thomas E. Gartmann·Loren Ban·Bruce L. Yoder·Sebastian Hartweg·Egor Chasovskikh·Ruth Signorell
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Abstract

We have investigated the solvation dynamics and the genuine binding energy and photoemission anisotropy of the solvated electron in neutral water clusters with a combination of time-resolved photoelectron velocity map imaging and electron scattering simulations. The dynamics was probed with a UV probe pulse following above-band-gap excitation with a EUV pump pulse. The solvation dynamics is completed within about 2 ps. Only a single band is observed in the spectra, with no indication for isomers with distinct binding energies. Data analysis with an electron scattering model reveals a genuine binding energy in the range of 3.55-3.85 eV and a genuine anisotropy parameter in the range of 0.51-0.66 for the ground-state hydrated electron. All these observations coincide with those for liquid bulk, which is rather unexpected for an average cluster size of 300 molecules.

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Thomas E. Gartmann, Loren Ban, Bruce L. Yoder, Sebastian Hartweg, Egor Chasovskikh, Ruth Signorell. 2019-06-20. Relaxation dynamics and genuine properties of the solvated electron in neutral water clusters. https://doi.org/10.1021/acs.jpclett.9b01802

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