File(s) under permanent embargo
Uranium(iv) cyclobutadienyl sandwich compounds: synthesis, structure and chemical bonding
journal contribution
posted on 2023-06-10, 01:34 authored by Nikolaos Tsoureas, Akseli Mansikkamäki, Richard LayfieldRichard LayfieldThe 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(?4-Cb'''')(BH4)3] and [U(?4-Cb'''')(µ-BH4)3{K(THF)2}]2. In the 1:2 reaction of U(BH4)4 with Na2Cb'''', formation of [U(?4-Cb'''')(?3-C4H(SiMe3)3-?-(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.
History
Publication status
- Published
File Version
- Published version
Journal
Chemical CommunicationsISSN
1359-7345Publisher
Royal Society of ChemistryExternal DOI
Issue
6Volume
56Page range
944-947Event location
EnglandDepartment affiliated with
- Chemistry Publications
Full text available
- No
Peer reviewed?
- Yes
Legacy Posted Date
2021-11-01First Compliant Deposit (FCD) Date
2021-10-30Usage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC