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Probing covalency with oxidant K edge x-ray absorption spectroscopy of UF4 and UO2

  • Author(s): Tobin, JG
  • Yu, S-W
  • Qiao, R
  • Yang, WL
  • Shuh, DK
  • et al.

Published Web Location

https://doi.org/10.1116/1.5046947
Abstract

© 2018 Author(s). There are some interesting discrepancies between what has been observed experimentally and the predictions of cluster theory. In particular, the F 1s x-ray absorption spectroscopy (XAS) of uranium tetrafluoride and the U 4d XAS branching ratio for oxidized uranium are two cases in point. These discrepancies may be driven by the overestimation of covalency in cluster calculations.

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