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Insights into the Electronic Structure of a U(IV) Amido and U(V) Imido Complex.

ABSTRACT: Reaction of the N-heterocylic carbene ligand ⁱ PrIm (L¹ ) and lithium bis(trimethylsilyl)amide (TMSA) as a base with UCl₄ resulted in U(IV) and U(V) complexes. Uranium's +V oxidation state in (HL¹ )₂ [U(V)(TMSI)Cl₅ ] (TMSI=trimethylsilylimido) (2) was confirmed by HERFD-XANES measurements. Solid state characterization by SC-XRD and geometry optimisation of [U(IV)(L¹ )₂ (TMSA)Cl₃ ] (1) indicated a silylamido ligand mediated inverse trans influence (ITI). The ITI was examined regarding different metal oxidation states and was compared to transition metal analogues by theoretical calculations.

SUBMITTER: Kohler L

PROVIDER: S-EPMC9310906 | biostudies-literature |

REPOSITORIES: biostudies-literature

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