Relaxation Dynamics and Genuine Properties of the Solvated Electron in Neutral Water Clusters

The Journal of Physical Chemistry Letters
Thomas E GartmannRuth Signorell

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 by an 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 of these observations coincide with those for liquid bulk, which is rather unexpected for an average cluster size of 300 molecules.

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Citations

Jan 25, 2020·Physical Review Letters·Loren BanR Signorell
Sep 10, 2019·Physical Chemistry Chemical Physics : PCCP·John M Herbert
Feb 5, 2021·Nature Communications·Jinggang LanVladimir V Rybkin
May 25, 2021·The Journal of Physical Chemistry. a·Sebastian HartwegLaurent Nahon
Jun 12, 2021·The Journal of Physical Chemistry. a·Loren BanRuth Signorell
Aug 24, 2019·The Journal of Physical Chemistry. B·Saswata DasguptaJohn M Herbert
Aug 25, 2021·Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology·Namasivayam DhenadhayalanViruthachalam Thiagarajan
Sep 4, 2020·The Journal of Physical Chemistry. a·Loren BanRuth Signorell

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Methods Mentioned

BETA
electron transport scattering
electron transport
electron scattering

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