# Influence of ligand substitution on uranium-ligand bond energies in the equatorial plane of uranyl compounds

Abstract : In this paper, a general treatment of the chemical mutual influence of ligands in the equatorial plane of the uranyl ion UO$^{2+}_2$ is described. The description based on the use of empirical theoretical methods. In the frame of these methods, the uranium–ligand bond energies in the coordination sphere of the uranyl compounds UO$_2$(NO$_3$)$_2$L$_2$ and UO$_2$(C$_2$O$_4$)$_2$L$_2$ (L is mono- or bidentate ligand) are calculated. Two kinds of regularities are considered and classified: the proportional dependence between the bond energy of L and bond energy of other ligands (“Fid-effect” of the first type) and the reversibly proportional dependence between these bond energies (“Fid-effect” of the second type). The chemical nature of both effects is described. The ligands are classified in the frame of potential application for liquid–liquid extraction.
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Journal articles
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https://hal-cea.archives-ouvertes.fr/cea-03239166
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### Citation

S. Ionov, C. Rabbe, G. Ionova. Influence of ligand substitution on uranium-ligand bond energies in the equatorial plane of uranyl compounds. Koordinatsionnaya Khimiya / Russian Journal of Coordination Chemistry, MAIK Nauka/Interperiodica, 2002, 28 (4), pp.249-258. ⟨10.1023/A:1015267919901⟩. ⟨cea-03239166⟩

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