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RESEARCH PRODUCT
Probing the Extremes of Covalency in M-Al bonds: Lithium and Zinc Aluminyl Compounds.
Jamie HicksJose M. GoicoecheaSimon AldridgePetra VaskoMatthew M. D. RoyAnne Marie BastonAndreas Heilmannsubject
low valent compoundssinkki (metallit)ChemistryMagnesiumaluminiumzincchemistry.chemical_elementkompleksiyhdisteetGeneral ChemistryZincGeneral MedicineBond orderCatalysiskemialliset sidoksetCrystallographylitiumNucleophilelithiumCovalent bondAluminiumaluminylPolarLithiumalumiinidescription
Synthetic routes to lithium, magnesium, and zinc aluminyl complexes are reported, allowing for the first structural characterization of an unsupported lithium-aluminium bond. Crystallographic and quantum-chemical studies are consistent with the presence of a highly polar Li-Al interaction, characterized by a low bond order and relatively little charge transfer from Al to Li. Comparison with magnesium and zinc aluminyl systems reveals changes to both the M-Al bond and the (NON)Al fragment (where NON=4,5-bis(2,6-diisopropylanilido)-2,7-di-tert-butyl-9,9-dimethylxanthene), consistent with a more covalent character, with the latter complex being shown to react with CO<sub>2</sub> via a pathway that implies that the zinc centre acts as the nucleophilic partner.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2022-01-19 | Angewandte Chemie (International ed. in English) |