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L edge chemical shift and bond length difference of the mixed oxidation Ce/Ce redox couple in solution

The Journal of Chemical Physics, ISSN: 0021-9606, Vol: 79, Issue: 3, Page: 1116-1121
1983
  • 27
    Citations
  • 0
    Usage
  • 8
    Captures
  • 0
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Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    27
    • Citation Indexes
      27
  • Captures
    8

Article Description

L edge absorption spectra of the Ce/Ce redox couple in solution have been recorded with synchrotron radiation. It is found that the L and L near edges exhibit large chemical shifts (7.3-9.0 eV) between the intense resonance ("white line") of Ce and Ce ions in solution. This shift is interpreted in terms of atomic and chemical effects and is correlated with thermodynamic parameters. Analysis of the L edge EXAFS gives an average Ce -HO distance of 2.50±0.02 Å. The lower bound of the Ce-HO bond length difference between Ce(H O) and Ce(HO) in solution is estimated to be 0.07±0.02 Å. © 1983 American Institute of Physics.

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