Hydrocarbon soluble alkali-metal-aluminium hydride surrog[ATES]

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Banerjee, Sumanta and MacDonald, Peter A. and Orr, Samantha A. and Kennedy, Alan R. and van Teijlingen, Alexander and Robertson, Stuart D. and Tuttle, Tell and Mulvey, Robert E. (2022) Hydrocarbon soluble alkali-metal-aluminium hydride surrog[ATES]. Chemistry - A European Journal, 28 (55). ISSN 1521-3765 (https://doi.org/10.1002/chem.202201085)

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Abstract

A series of group 1 hydrocarbon-soluble donor free aluminates [AM( tBuDHP)(TMP)Al( iBu) 2] (AM=Li, Na, K, Rb) have been synthesised by combining an alkali metal dihydropyridyl unit [(2- tBuC 5H 5N)AM)] containing a surrogate hydride (sp 3 C−H) with [( iBu) 2Al(TMP)]. These aluminates have been characterised by X-ray crystallography and NMR spectroscopy. While the lithium aluminate forms a monomer, the heavier alkali metal aluminates exist as polymeric chains propagated by non-covalent interactions between the alkali metal cations and the alkyldihydropyridyl units. Solvates [(THF)Li( tBuDHP)(TMP)Al( iBu) 2] and [(TMEDA)Na( tBuDHP)(TMP)Al( iBu) 2] have also been crystallographically characterised. Theoretical calculations show how the dispersion forces tend to increase on moving from Li to Rb, as opposed to the electrostatic forces of stabilization, which are orders of magnitude more significant. Having unique structural features, these bimetallic compounds can be considered as starting points for exploring unique reactivity trends as alkali-metal-aluminium hydride surrog[ATES].

ORCID iDs

Banerjee, Sumanta, MacDonald, Peter A., Orr, Samantha A. ORCID logoORCID: https://orcid.org/0000-0001-9295-9312, Kennedy, Alan R. ORCID logoORCID: https://orcid.org/0000-0003-3652-6015, van Teijlingen, Alexander ORCID logoORCID: https://orcid.org/0000-0002-3739-8943, Robertson, Stuart D. ORCID logoORCID: https://orcid.org/0000-0002-9330-8770, Tuttle, Tell and Mulvey, Robert E. ORCID logoORCID: https://orcid.org/0000-0002-1015-2564;
  • Item type:Article
    ID code:81538
    Dates:
    Date
    Event
    4 October 2022
    Published
    10 July 2022
    Published Online
    6 July 2022
    Accepted
    Subjects:Science > Chemistry
    Department:Faculty of Science > Pure and Applied Chemistry
    Depositing user: Pure Administrator
    Date deposited:21 Jul 2022 15:32
    Last modified:22 Dec 2024 01:30
    URI:https://strathprints.strath.ac.uk/id/eprint/81538
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