The role of neptunium oxidation states and coordination in shaping XANES spectra at the Np L ₃ absorption edge

Daniil A. Novichkov; Tatiana Poliakova; А. М. Федосеев; Alexey D. Averin; Petr I. Matveev; A. P. Mitrofanov; Stepan N. Kalmykov

doi:10.1039/d5cp02139a

January 1, 2026Physical Chemistry Chemical Physics

The role of neptunium oxidation states and coordination in shaping XANES spectra at the Np L ₃ absorption edge

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Key Points

The study aims to understand the influence of neptunium oxidation states on XANES spectra.
Analyzed neptunium oxides in oxidation states +4 to +7
Utilized X-ray absorption near-edge spectroscopy (XANES)
Conducted theoretical modeling to interpret results
Identified distinct spectral features correlating with different oxidation states
Revealed coordination impacts on the XANES spectra
Provided insights into the electronic structure of neptunium compounds

Implication

Investigates how neptunium oxidation states influence XANES spectra, suggesting new insights for material analysis.

Abstract

This paper presents the results of a comprehensive study of neptunium oxides in oxidation states +4 to +7 using X-ray absorption near-edge spectroscopy (XANES) and theoretical modeling.

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Cite This Study

Novichkov et al. (2026) studied this question.

synapsesocial.com/papers/696719a7c0d1e3cfbfce8f2c https://doi.org/10.1039/d5cp02139a

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The role of neptunium oxidation states and coordination in shaping XANES spectra at the Np L ₃ absorption edge

Key Points

Implication

Abstract

Discussion

Cite This Study

The role of neptunium oxidation states and coordination in shaping XANES spectra at the Np L ₃ absorption edge

Key Points

Implication

Abstract

Discussion

Cite This Study

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