(NONDipp)Al-K(TMEDA)2 (NONDipp = [O(SiMe2NDipp)2]2-, Dipp = 2,6-iPr2C6H3), containing an Al-K bond, activates and reductively couples cabon monoxide gas to form the [C4O4]4- ligand. This oxocarbon anion is thermally isomerised in… Click to show full abstract
(NONDipp)Al-K(TMEDA)2 (NONDipp = [O(SiMe2NDipp)2]2-, Dipp = 2,6-iPr2C6H3), containing an Al-K bond, activates and reductively couples cabon monoxide gas to form the [C4O4]4- ligand. This oxocarbon anion is thermally isomerised in the presence of CO and TMEDA. In contrast, the dimeric potassium aluminyl [K{Al(NONDipp)}]2 yields an aluminium complex containing the hitherto unknown [C5O5]5- ligand.
               
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