Size-Resolved Photoelectron Anisotropy of Gas Phase Water Clusters and Predictions for Liquid Water

被引：42

作者：

Hartweg, Sebastian ^{[1
]}

Yoder, Bruce L. ^{[1
]}

Garcia, Gustavo A. ^{[2
]}

Nahon, Laurent ^{[2
]}

Signorell, Ruth ^{[1
]}

机构：

[1] Swiss Fed Inst Technol, Phys Chem Lab, Dept Chem & Appl Biosci, Vladimir Prelog Weg 2, CH-8093 Zurich, Switzerland

[2] Synchrotron SOLEIL, LOrme Merisiers, St Aubin BP 48, F-91192 Gif Sur Yvette, France

来源：

PHYSICAL REVIEW LETTERS | 2017年 / 118卷 / 10期

基金：

瑞士国家科学基金会;

关键词：

ELECTRONIC-STRUCTURE; SOLVATED ELECTRONS; PHOTOIONIZATION; SPECTROSCOPY; DYNAMICS; FRAGMENTATION; PHOTOEMISSION; IONIZATION; SCATTERING; CHEMISTRY;

D O I：

10.1103/PhysRevLett.118.103402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the first measurements of size-resolved photoelectron angular distributions for the valence orbitals of neutral water clusters with up to 20 molecules. A systematic decrease of the photoelectron anisotropy is found for clusters with up to 5-6 molecules, and most remarkably, convergence of the anisotropy for larger clusters. We suggest the latter to be the result of a local short-range scattering potential that is fully described by a unit of 5-6 molecules. The cluster data and a detailed electron scattering model are used to predict the anisotropy of slow photoelectrons in liquid water. Reasonable agreement with experimental liquid jet data is found.

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页数：6

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