Isostructural σ-hydrocarbyl phospholide complexes of uranium, neptunium, and plutonium

σ-Hydrocarbyl complexes of the form [M(η 5 -PC 4 Me 4 ) 2 (μ-η 1 :η 6 -CH 2 Ph) 2 K(η 6 -arene)] (M = La, Ce, Pr, U, Np, Pu; arene = benzene or toluene) were synthesised in one-pot reactions from [MI 3 (THF) 4 ], or [U(BH 4 ) 3 (toluene)] (M = U). All complexes were examined by multinuclear ( 1 H, 1...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2022-11, Vol.58 (95), p.13278-13281
Main Authors: erná, Michaela, Seed, John A, Garrido Fernandez, Sara, Janicke, Michael T, Scott, Brian L, Whitehead, George F. S, Gaunt, Andrew J, Goodwin, Conrad A. P
Format: Article
Language:English
Subjects:
Benzene
Chemical bonds
Chemical synthesis
INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Neptunium
NMR
Nuclear magnetic resonance
Plutonium
Single crystals
Toluene
Uranium
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Summary:σ-Hydrocarbyl complexes of the form [M(η 5 -PC 4 Me 4 ) 2 (μ-η 1 :η 6 -CH 2 Ph) 2 K(η 6 -arene)] (M = La, Ce, Pr, U, Np, Pu; arene = benzene or toluene) were synthesised in one-pot reactions from [MI 3 (THF) 4 ], or [U(BH 4 ) 3 (toluene)] (M = U). All complexes were examined by multinuclear ( 1 H, 13 C{ 1 H}, 31 P{ 1 H}) NMR and UV-vis-NIR spectroscopy, as well as single-crystal X-ray diffraction from which molecular metal-phosphorus bonds for Np and Pu, and a σ-hydrocarbyl metal-carbon bond for Pu, have been structurally authenticated. A bis-phospholide framework allows isolation, structural, and spectroscopic characterisation of isostructural lanthanide, uranium, neptunium, and plutonium σ-bonded hydrocarbyl complexes.
ISSN:1359-7345
1364-548X
DOI:10.1039/d2cc04803e