Understanding the Surprising Oxidation Chemistry of Au−OH Complexes

Silène Engbers, Johannes E. M. N. Klein*

*Corresponding author voor dit werk

OnderzoeksoutputAcademicpeer review

2 Citaten (Scopus)
54 Downloads (Pure)

Samenvatting

Au is known to be fairly redox inactive (in catalysis) and bind oxygen adducts only quite weakly. It is thus rather surprising that stable Au−OH complexes can be synthesized and used as oxidants for both one- and two-electron oxidations. A charged AuIII−OH complex has been shown to cleave C−H and O−H bonds homolytically, resulting in a one-electron reduction of the metal center. Contrasting this, a neutral AuIII−OH complex performs oxygen atom transfer to phosphines, resulting in a two-electron reduction of the hydroxide proton to form a AuIII−H rather than causing a change in oxidation state of the metal. We explore the details of these two examples and draw comparisons to the more conventional reactivity exhibited by AuI−OH. Although the current scope of known Au−OH oxidation chemistry is still in its infancy, the current literature exemplifies the unique properties of Au chemistry and shows promise for future findings in the field.

Originele taal-2English
Artikelnummere202200475
Aantal pagina's5
TijdschriftChemphyschem
Volume24
Nummer van het tijdschrift1
DOI's
StatusPublished - 3-jan.-2023

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