Influence of the nature of the ligands on the electronic ground state of organouranium (V) compounds, studied by electron paramagnetic resonance - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Inorganic Chemistry Année : 1997

Influence of the nature of the ligands on the electronic ground state of organouranium (V) compounds, studied by electron paramagnetic resonance

Résumé

It is shown by electron paramagnetic resonance spectroscopy on a series of organouranium(V) compounds that interactions of uranium 5f orbitals with η8-C8H8, η5-C5H5, THF, and dialkylamide ligands are very weak. All of these ligands favor a predominantly $^{2}$F$_{5/2}$, MJ = ±1/2 metallic ground state, with an admixture of MJ = ±5/2. The presence of a THF ligand is characterized by an admixture of the MJ = ±3/2 states. Covalent interactions of 5f orbitals are much stronger with alkoxide ligands, so that J = 5/2 is no longer a good quantum number.

Domaines

Chimie

Dates et versions

hal-01874423 , version 1 (14-09-2018)

Identifiants

Citer

Didier Gourier, Daniel Caurant, Jean Claude Berthet, Christophe Boisson, Michel Ephritikhine. Influence of the nature of the ligands on the electronic ground state of organouranium (V) compounds, studied by electron paramagnetic resonance. Inorganic Chemistry, 1997, 36 (25), pp.5931--5936. ⟨10.1021/ic961496h⟩. ⟨hal-01874423⟩
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