What question did this study set out to answer?

The study aims to understand the influence of neptunium oxidation states on XANES spectra.

January 14, 2026

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

DNDaniil A. NovichkovLomonosov Moscow State University TPTatiana PoliakovaLomonosov Moscow State University АФА. М. ФедосеевFrumkin Institute of Physical Chemistry and Electrochemistry

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

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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