Probing Multiconfigurational States by Spectroscopy: The Cerium XAS L3 -edge Puzzle.

Dumitru-Claudiu Sergentu Corwin H Booth Jochen Autschbach

Published in: Chemistry (Weinheim an der Bergstrasse, Germany) (2021)

Invited for the cover of this issue are Prof. Jochen Autschbach and Dr. Dumitru-Claudiu Sergentu of State University of New York at Buffalo, and Dr. Corwin H. Booth of Lawrence Berkeley National Laboratory. The image depicts high-energy X-ray beams as lightnings probing Ce at the L3 edge in the iconic covalent-bonded Ce(C8 H8 )2 and in CeO2 . The mountain peaks in the background represent the double-peaked L3 edges. The peaks turn out to be intuitively interpreted in terms of localized orbitals and hence metal oxidation states. Read the full text of the article at 10.1002/chem.202100145.

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