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Updated: Jun 8, 2026

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
Published on: March 24, 2018
A new weakly coordinating aluminate anion incorporating a chelating perfluoro-bis-anilido ligand
Joshua C Smith1, Kuangbiao Ma, Warren E Piers
1Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta, Canada T2N 1N4.
Abstract:
The synthesis of the fully fluorinated bis-anilido ligand N,N'-bis-pentafluorophenyl-3,4,5,6-tetrafluorophenylene-1,2-diamine, 1 is described. Reaction of one or two equivalents of 1 with AlMe(3) gives aluminium compounds incorporating one or two ligands, the latter being the protonated form of a new weakly coordinating anion (WCA), 3-H. Alternatively, reaction of 1 with LiAlH(4) yields the lithium salt of this anion, 3-Li, which may be employed as a reagent for preparing the trityl and N,N-dimethylanilinium salts of the aluminate anion. All ion pairs are fully characterized and the use of 3-Ph(3)C to generate titanium-based alkyl cations is also described.
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