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RESEARCH PRODUCT
Uranium( iv ) cyclobutadienyl sandwich compounds: synthesis, structure and chemical bonding
Akseli MansikkamäkiNikolaos TsoureasRichard A. Layfieldsubject
chemistry.chemical_element010402 general chemistryBorohydride01 natural sciencesMedicinal chemistryCatalysisIonkemialliset sidoksetchemistry.chemical_compoundDeprotonationMaterials Chemistrykemiallinen synteesi010405 organic chemistryLigandChemistryMetals and AlloyskompleksiyhdisteetGeneral ChemistryUranium3. Good health0104 chemical sciencesSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsuraaniChemical bondCovalent bondIntramolecular forceCeramics and Compositesdescription
The 1 : 1 reactions of uranium(IV) tetrakis(borohydride) with the sodium and potassium salts of the cyclobutadienyl anion [C4(SiMe3)4]2− (Cb′′′′) produce the half-sandwich complexes [Na(12-crown-4)2][U(η4-Cb′′′′)(BH4)3] and [U(η4-Cb′′′′)(μ-BH4)3{K(THF)2}]2. In the 1 : 2 reaction of U(BH4)4 with Na2Cb′′′′, formation of [U(η4-Cb′′′′)(η3-C4H(SiMe3)3-κ-(CH2SiMe2)(BH4))]− reveals that a Cb′′′′ ligand undergoes an intramolecular deprotonation, resulting in an allyl/tuck-in bonding mode. A computational study reveals that the uranium–Cb′′′′ bonding has an appreciable covalent component with contributions from the uranium 5f and 6d orbitals. peerReviewed
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-12-20 | Chemical Communications |