Extremely bulky β-diketiminate complexes of calcium(II) and ytterbium(II)
Abstract
The potassium salt of an extremely bulky β-diketiminate, [K(Ar*Nacnac)] (Ar*Nacnac = [(Ar*NCMe)2CH]-; Ar* = C6H2Me{C(H)Ph2}2-4,2,6) was reacted with either CaI2 or YbI2(THF)2, which afforded [(Ar*Nacnac)MI] (M = Ca or Yb). These are the first examples of structurally characterised, donor solvent free, N-arene substituted β-diketiminato calcium/ytterbium complexes that incorporate a terminal iodide ligand. Reduction of [(Ar*Nacnac)CaI] with sodium metal gave a complex product mixture, from which a few crystals of the β-diketiminate C-H activated product, [{Ca(μ-Ar*Nacnac-H)}2], were obtained and crystallographically characterised. In an attempt to form a terminal ytterbium hydride compound, treatment of [(Ar*Nacnac)YbI] with K[HBEt3] gave a good yield of the contact ion pair compound [(Ar*Nacnac)Yb(HBEt3)].
Citation
Maitland , B , Stasch , A & Jones , C 2022 , ' Extremely bulky β-diketiminate complexes of calcium(II) and ytterbium(II) ' , Australian Journal of Chemistry , vol. Online Early , CH21283 . https://doi.org/10.1071/CH21283
Publication
Australian Journal of Chemistry
Status
Peer reviewed
ISSN
0004-9425Type
Journal article
Description
This research was supported by the Australian Research Council.Collections
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