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X-Ray photo- and resonant Auger-electron spectroscopy studies of liquid water and aqueous solutions

X-Ray photo- and resonant Auger-electron spectroscopy studies of liquid water and aqueous solutions It has only recently become possible to use photoelectron spectroscopy (PES) to study the electronic structure of highly volatile aqueous surfaces. Here, we review current X-ray PES and related resonant Auger-electron decay and intermolecular Coulomb decay investigations in solution, which aim at understanding the solute–water, water–water, and solute–solute interactions at the microscopic level. Systems that will be discussed include neat liquid water, and aqueous solutions of hydroxide, hydronium, salts and amino acids. From observed chemical shifts in the main photoelectron lines or from the occurrence of spectator Auger-electron peaks, information on electron dynamics and/or energy transfer processes, and at times on the structure of the hydration complex, may be accessed. Furthermore, we discuss PES in conjunction with variable energy incident X-ray photons; with the resulting change of the (photo)electron kinetic energy, ion spatial distributions at the liquid–vapor interface can be determined. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annual Reports Section "C" (Physical Chemistry) Royal Society of Chemistry

X-Ray photo- and resonant Auger-electron spectroscopy studies of liquid water and aqueous solutions

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Publisher
Royal Society of Chemistry
Copyright
This journal is © The Royal Society of Chemistry
ISSN
0260-1826
eISSN
1460-4787
DOI
10.1039/b803023p
Publisher site
See Article on Publisher Site

Abstract

It has only recently become possible to use photoelectron spectroscopy (PES) to study the electronic structure of highly volatile aqueous surfaces. Here, we review current X-ray PES and related resonant Auger-electron decay and intermolecular Coulomb decay investigations in solution, which aim at understanding the solute–water, water–water, and solute–solute interactions at the microscopic level. Systems that will be discussed include neat liquid water, and aqueous solutions of hydroxide, hydronium, salts and amino acids. From observed chemical shifts in the main photoelectron lines or from the occurrence of spectator Auger-electron peaks, information on electron dynamics and/or energy transfer processes, and at times on the structure of the hydration complex, may be accessed. Furthermore, we discuss PES in conjunction with variable energy incident X-ray photons; with the resulting change of the (photo)electron kinetic energy, ion spatial distributions at the liquid–vapor interface can be determined.

Journal

Annual Reports Section "C" (Physical Chemistry)Royal Society of Chemistry

Published: Apr 3, 2009

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