High energy resolution x-ray absorption spectroscopy study of uranium in varying valence states

T. Vitova; K. O. Kvashnina; G. Nocton; G. Sukharina; M. A. Denecke; S. M. Butorin; M. Mazzanti; R. Caciuffo; A. Soldatov; T. Behrends; H. Geckeis

doi:10.1103/PhysRevB.82.235118

High energy resolution x-ray absorption spectroscopy study of uranium in varying valence states

T. Vitova, K. O. Kvashnina, G. Nocton, G. Sukharina, M. A. Denecke, S. M. Butorin, M. Mazzanti, R. Caciuffo, A. Soldatov, T. Behrends, H. Geckeis

Dalton Nuclear Institute

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Abstract

A high energy resolution x-ray absorption near-edge structure (XANES) spectroscopy study on U4⊃+ (UO2), U5⊃+ ([UO2 Py5] [KI2 Py2]), and U6⊃+ [UO2 (NO3) 2 (H2 O) 6] demonstrates the potential of this experimental technique for qualitative/semiqualitative and quantitative actinide speciation investigations. We observe a pre-edge feature with quadrupole nature in a U L3 edge partial fluorescence yield-XANES spectrum. This feature is a tool for characterizing the participation of 5f orbitals in U-O bonding. The feature origin is explained by performing calculations with the finite difference method near-edge structure code based on the multiple-scattering theory and the finite difference method.

Original language	English
Article number	235118
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	82
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevB.82.235118
Publication status	Published - 14 Dec 2010

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Vitova, T., Kvashnina, K. O., Nocton, G., Sukharina, G., Denecke, M. A., Butorin, S. M., Mazzanti, M., Caciuffo, R., Soldatov, A., Behrends, T., & Geckeis, H. (2010). High energy resolution x-ray absorption spectroscopy study of uranium in varying valence states. Physical Review B - Condensed Matter and Materials Physics, 82(23), Article 235118. https://doi.org/10.1103/PhysRevB.82.235118

@article{082c4be636ee461b8b0ffedd0ae6b023,

title = "High energy resolution x-ray absorption spectroscopy study of uranium in varying valence states",

abstract = "A high energy resolution x-ray absorption near-edge structure (XANES) spectroscopy study on U4⊃+ (UO2), U5⊃+ ([UO2 Py5] [KI2 Py2]), and U6⊃+ [UO2 (NO3) 2 (H2 O) 6] demonstrates the potential of this experimental technique for qualitative/semiqualitative and quantitative actinide speciation investigations. We observe a pre-edge feature with quadrupole nature in a U L3 edge partial fluorescence yield-XANES spectrum. This feature is a tool for characterizing the participation of 5f orbitals in U-O bonding. The feature origin is explained by performing calculations with the finite difference method near-edge structure code based on the multiple-scattering theory and the finite difference method.",

author = "T. Vitova and Kvashnina, \{K. O.\} and G. Nocton and G. Sukharina and Denecke, \{M. A.\} and Butorin, \{S. M.\} and M. Mazzanti and R. Caciuffo and A. Soldatov and T. Behrends and H. Geckeis",

year = "2010",

month = dec,

day = "14",

doi = "10.1103/PhysRevB.82.235118",

language = "English",

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journal = "Physical Review B - Condensed Matter and Materials Physics",

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Vitova, T, Kvashnina, KO, Nocton, G, Sukharina, G, Denecke, MA, Butorin, SM, Mazzanti, M, Caciuffo, R, Soldatov, A, Behrends, T & Geckeis, H 2010, 'High energy resolution x-ray absorption spectroscopy study of uranium in varying valence states', Physical Review B - Condensed Matter and Materials Physics, vol. 82, no. 23, 235118. https://doi.org/10.1103/PhysRevB.82.235118

TY - JOUR

T1 - High energy resolution x-ray absorption spectroscopy study of uranium in varying valence states

AU - Vitova, T.

AU - Kvashnina, K. O.

AU - Nocton, G.

AU - Sukharina, G.

AU - Denecke, M. A.

AU - Butorin, S. M.

AU - Mazzanti, M.

AU - Caciuffo, R.

AU - Soldatov, A.

AU - Behrends, T.

AU - Geckeis, H.

PY - 2010/12/14

Y1 - 2010/12/14

N2 - A high energy resolution x-ray absorption near-edge structure (XANES) spectroscopy study on U4⊃+ (UO2), U5⊃+ ([UO2 Py5] [KI2 Py2]), and U6⊃+ [UO2 (NO3) 2 (H2 O) 6] demonstrates the potential of this experimental technique for qualitative/semiqualitative and quantitative actinide speciation investigations. We observe a pre-edge feature with quadrupole nature in a U L3 edge partial fluorescence yield-XANES spectrum. This feature is a tool for characterizing the participation of 5f orbitals in U-O bonding. The feature origin is explained by performing calculations with the finite difference method near-edge structure code based on the multiple-scattering theory and the finite difference method.

AB - A high energy resolution x-ray absorption near-edge structure (XANES) spectroscopy study on U4⊃+ (UO2), U5⊃+ ([UO2 Py5] [KI2 Py2]), and U6⊃+ [UO2 (NO3) 2 (H2 O) 6] demonstrates the potential of this experimental technique for qualitative/semiqualitative and quantitative actinide speciation investigations. We observe a pre-edge feature with quadrupole nature in a U L3 edge partial fluorescence yield-XANES spectrum. This feature is a tool for characterizing the participation of 5f orbitals in U-O bonding. The feature origin is explained by performing calculations with the finite difference method near-edge structure code based on the multiple-scattering theory and the finite difference method.

UR - https://www.scopus.com/pages/publications/78650861786

U2 - 10.1103/PhysRevB.82.235118

DO - 10.1103/PhysRevB.82.235118

M3 - Article

SN - 1098-0121

VL - 82

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 23

M1 - 235118

ER -

High energy resolution x-ray absorption spectroscopy study of uranium in varying valence states

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