Formation of Fully Stoichiometric, Oxidation-State Pure Neptunium and Plutonium Dioxides from Molecular Precursors.

ABSTRACT: Amidate-based ligands (N-(tert-butyl)isobutyramide, ITA) bind κ² to form homoleptic, 8-coordinate complexes with tetravalent ²³⁷Np (Np(ITA)₄, 1-Np) and ²⁴²Pu (Pu(ITA)₄, 1-Pu). These compounds complete an isostructural series from Th, U-Pu and allow for the direct comparison between many of the early actinides with stable tetravalent oxidation states by nuclear magnetic resonance (NMR) spectroscopy and single crystal X-ray diffraction (SCXRD). The molecular precursors are subjected to controlled thermolysis under mild conditions with the exclusion of exogenous air and moisture, facilitating the removal of the volatile organic ligands and ligand byproducts. The preformed metal-oxygen bond in the precurs

SUBMITTER: Peterson A 

PROVIDER: S-EPMC11445724 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature