L 3 -edge X-ray spectroscopy of rhodium and palladium compounds.

Hugo Alexander Suarez Orduz Luca Bugarin Sarina Lena Heck Paolo Dolcet Maria Casapu Jan-Dierk Grunwaldt Pieter Glatzel

Published in: Journal of synchrotron radiation (2024)

L 3 -edge high-energy-resolution fluorescence-detection X-ray absorption near-edge structure (XANES) spectra for palladium and rhodium compounds are presented, with focus on their electronic structures. The data are compared with transmission XANES spectra recorded at the K-edge. A correlation between the absorption edge energy and the metal ion oxidation state is not observed. Despite the different filling of the 4d orbitals and different local coordination, the Rh and Pd compounds show remarkably similar spectral shapes. Calculation of the density of states and of the L 3 -XANES data reproduce the experimental results.

Keyphrases

high resolution
single molecule
density functional theory
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big data
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optical coherence tomography
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data analysis