An aluminium telluride with a terminal Al=Te bond and its conversion to an aluminium tellurocarbonate by CO2 reduction

Xu, Huihui and Kostenko, Arseni and Weetman, Catherine and Fujimori, Shiori and Inoue, Shigeyoshi (2023) An aluminium telluride with a terminal Al=Te bond and its conversion to an aluminium tellurocarbonate by CO2 reduction. Angewandte Chemie, 135 (11). e202216021. ISSN 0044-8249 (https://doi.org/10.1002/ange.202216021)

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Abstract

Facile access to dimeric heavier aluminium chalcogenides [(NHC)Al(Tipp)-µ-Ch]2 (NHC = IiPr (1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene, IMe4 (1,3,4,5-tetramethylimidazol-2-ylidene); Tipp = 2,4,6-iPr3C6H2; Ch = Se, Te) by treatment of NHC-stabilized aluminium dihydrides with elemental Se and Te is reported. The higher affinity of IMe4 in comparison with IiPr toward the Al center in [(NHC)Al(Tipp)-µ-Ch]2 can be used for ligand exchange. Additionally, the presence of excess IMe4 allows for cleavage of the dimers to form a rare example of a neutral multiply bonded heavier aluminium chalcogenide in the form of a tetracoordinate aluminium complex, (IMe4)2(Tipp)Al=Te. This species reacts with three equivalents of CO2 across two Al–CNHC and the Al=Te bond affording a pentacoordinate aluminium complex containing a dianionic tellurocarbonate ligand [CO2Te]2-, which is the first example of tellurium analogue of a carbonate [CO3]2-.

  • Item type:Article
    ID code:83926
    Dates:
    Date
    Event
    6 March 2023
    Published
    12 January 2023
    Published Online
    12 January 2023
    Accepted
    Subjects:Science > Chemistry
    Department:Faculty of Science > Pure and Applied Chemistry
    Depositing user: Pure Administrator
    Date deposited:30 Jan 2023 14:55
    Last modified:26 Apr 2024 00:57
    URI:https://strathprints.strath.ac.uk/id/eprint/83926
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