High-resolution X-ray spectroscopy of rare events: A different look at local structure and chemistry

Uwe Bergmann, Pieter Glatzel, John H. Robblee, Johannes Messinger, Carmen Fernandez, Roehl Cinco, Henk Visser, Karen McFarlane, Emanuele Bellacchio, Shelly Pizarro, Kenneth Sauer, Vittal K. Yachandra, Melvin P. Klein, Billie L. Cox, Kenneth H. Nealson, Stephen P. Cramer

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The combination of large-acceptance high-resolution X-ray optics with bright synchrotron sources permits quantitative analysis of rare events such as X-ray fluorescence from very dilute systems, weak fluorescence transitions or X-ray Raman scattering. Transition-metal Kβ fluorescence contains information about spin and oxidation state; examples of the characterization of the Mn oxidation states in the oxygen-evolving complex of photosystem II and Mn-consuming spores from the marine bacillus SG-1 are presented. Weaker features of the Kβ spectrum resulting from valence-level and 'interatomic' ligand to metal transitions contain detailed information on the ligand-atom type, distance and orientation. Applications of this spectral region to characterize the local structure of model compounds are presented. X-ray Raman scattering (XRS) is an extremely rare event, but also represents a unique technique to obtain bulk-sensitive low-energy (
    Original languageEnglish
    Pages (from-to)199-203
    Number of pages4
    JournalJournal of Synchrotron Radiation
    Volume8
    Issue number2
    DOIs
    Publication statusPublished - 1 Mar 2001

    Keywords

    • High resolution
    • Inelastic scattering
    • Metalloproteins
    • X-ray fluorescence spectroscopy
    • X-ray Raman scattering

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