Monocyclooctatetraene uranium amide compounds in the +4 and +5 oxidation states

DOI: 10.1039/dt9960000947

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 947 - 953 (1996)

Update date:2022-07-30

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Authors:

Boisson, Christophe

Berthet, Jean-Claude

Lance, Monique

Vigner, Julien

Nierlich, Martine

Ephritikhine, Michel

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Article abstract of DOI:10.1039/dt9960000947

The compounds M[U(cot)(NEt₂)₃] 1 (cot = η-C₈H₈, M = Li or K) were prepared by (a) reaction of [U(NEt₂)₄] or [U(NEt₂)₃][BPh₄] with K₂(cot), (b) treatment of UCl₄ with LiNEt₂ and K₂(cot) and (c) reaction of [U(cot)₂] with LiNEt₂. The compound [U(cot)(NEt₂)₂(thf)] 2 (thf = tetrahydrofuran) was synthesized by treating [U(NEt₂)₂Cl₂] with K₂(cot). Uranium(v) compounds were obtained by oxidation of 1 and 2. Treatment of 1 with TIBPh₄ afforded [U(cot)(NEt₂)₃] which was transformed into [U(cot)(OPrⁱ)₃] by alcoholysis. Complex 2 reacted with AgBPh₄ or Tl(cp) (cp = η-C₅H₅) to give [U(cot)(NEt₂)₂(thf)][BPh₄] and [U(cot)(cp)(NEt₂)₂] respectively, the crystal structure of the first of which has been determined.

Full text of DOI:10.1039/dt9960000947

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