Resonant x-ray emission spectroscopy of liquid water: novel instrumentation, high resolution, and the"map" approach Metadata

Title

• Main Title Resonant x-ray emission spectroscopy of liquid water: novel instrumentation, high resolution, and the"map" approach

Creator

• Author: Weinhardt, L.
  Creator Type: Personal
• Author: Fuchs, O.
  Creator Type: Personal
• Author: Blum, M.
  Creator Type: Personal
• Author: Bär, M.
  Creator Type: Personal
• Author: Weigand, M.
  Creator Type: Personal
• Author: Denlinger, J.D.
  Creator Type: Personal
• Author: Zubavichus, Y.
  Creator Type: Personal
• Author: Zharnikov, M.
  Creator Type: Personal
• Author: Grunze, M.
  Creator Type: Personal
• Author: Heske, C.
  Creator Type: Personal
• Author: Umbach, E.
  Creator Type: Personal

Contributor

• Sponsor: Lawrence Berkeley National Laboratory. Advanced Light Source.
  Contributor Type: Organization

Publisher

• Name: Lawrence Berkeley National Laboratory
  Place of Publication: Berkeley, California
  Additional Info: Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (United States)

Date

• Creation: 2008-06-17

Language

• English

Description

• Content Description: Techniques to study the electronic structure of liquids are rare. Most recently, resonant x-ray emission spectroscopy (XES) has been shown to be an extremely versatile spectroscopy to study both occupied and unoccupied electronic states for liquids in thermodynamic equilibrium. However, XES requires high-brilliance soft x-ray synchrotron radiation and poses significant technical challenges to maintain a liquid sample in an ultra-high vacuum environment. Our group has therefore developed and constructed a novel experimental setup for the study of liquids, with the long-term goal of investigating the electronic structure of biological systems in aqueous environments. We have developed a flow-through liquid cell in which the liquid is separated from vacuum by a thin Si3N4 or SiC window and which allows a precise control of temperature. This approach has significant advantages compared to static liquids cells used in the past. Furthermore, we have designed a dedicated high-transmission, high-resolution soft x-ray spectrometer. The high transmission makes it possible to measure complete resonant XES"maps" in less than an hour, giving unprecedented detailed insight into the electronic structure of the investigated sample. Using this new equipment we have investigated the electronic structure of liquid water. Furthermore, our XES spectra and maps give information about ultra-fast dissociation on the timescale of the O 1s core hole lifetime, which is strongly affected by the initial state hydrogen bonding configuration.
• Physical Description: 6

Subject

• Keyword: Electronic Structure
• Keyword: Dissociation
• Keyword: X-Ray Spectrometers Water, Rixs, X-Ray Emission
• Keyword: Emission Spectroscopy
• Keyword: Water, Rixs, X-Ray Emission
• Keyword: Windows
• STI Subject Categories: 36
• Keyword: Hydrogen
• Keyword: Thermodynamics
• Keyword: Lifetime
• Keyword: Water
• Keyword: Spectroscopy
• Keyword: Configuration
• Keyword: Resolution
• Keyword: Spectra
• Keyword: Bonding
• Keyword: Synchrotron Radiation

Source

• Journal Name: Journal of Electron Spectroscopy and Related Phenomena; Related Information: Journal Publication Date: March 2009 online

Collection

• Name: Office of Scientific & Technical Information Technical Reports
  Code: OSTI

Institution

• Name: UNT Libraries Government Documents Department
  Code: UNTGD

Resource Type

• Article

Format

• Text

Identifier

• Report No.: LBNL-2309E
• Grant Number: DE-AC02-05CH11231
• Office of Scientific & Technical Information Report Number: 971354
• Archival Resource Key: ark:/67531/metadc930226