Inner valence molecular orbitals and the structure of X-ray O{sub 4,5}(U) emission spectra of uranium in oxides UO{sub 2} and {gamma}-UO{sub 3}
- Kurchatov Institute Russian Research Center, Moscow (Russian Federation)
- Voronezh State Univ. (Russian Federation)
The efficient participation of the relatively low-lying U6p, 6s and Lns atomic orbitals (AOs) of the neighboring ions and ligands (L) in the formation of outer valence and inner valence molecular orbitals (OVMOs and IVMOs, respectively) was first found when interpreting the fine structure of the X-ray photoelectron spectra. However, the first X-ray O{sub 4,5}(U) emission spectra of uranium in oxides, which could prove the formation of IVMO in them, were low-resolution. In this work, the authors obtained, for the first time, high-resolution emission spectra for uranium in dioxide UO{sub 2} and trioxide {gamma}-UO{sub 3} with the aim of interpreting the fine structure using the results of X-ray photoelectron spectroscopy on the IVMOs in these oxides.
- OSTI ID:
- 243996
- Journal Information:
- Doklady Physical Chemistry, Vol. 345, Issue 1-3; Other Information: PBD: Nov 1995; TN: Translated from Doklady Akademii Nauk; 345: No. 2, 356-359(1995)
- Country of Publication:
- United States
- Language:
- English
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