Ligand-enabled oxidation of gold(<scp>i</scp>) complexes with <i>o</i>-quinones - Archive ouverte HAL Access content directly
Journal Articles Chemical Science Year : 2022

Ligand-enabled oxidation of gold(i) complexes with o-quinones

György Szalóki
  • Function : Author
Julien Babinot
  • Function : Author
Vlad Martin-Diaconescu
  • Function : Author
Sonia Mallet-Ladeira
Yago García-Rodeja


Chelating P^P and hemilabile P^N ligands were found to trigger the oxidation of Au(I) complexes by obenzoquinones. The ensuing Au(III) catecholate complexes have been characterized by NMR spectroscopy, single crystal X-ray diffraction and X-ray absorption spectroscopy. They adopt tetracoordinate square-planar structures. Reactivity studies substantiate the reversibility of the transformation. In particular, the addition of competing ligands such as chloride and alkenes gives back Au(I) complexes with concomitant release of the o-quinone. DFT calculations provide insight about the structure and relative stability of the Au(I) o-quinone and Au(III) catecholate forms, and shed light on the 2-electron transfer from gold to the o-quinone.
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Dates and versions

hal-03842055 , version 1 (07-11-2022)



György Szalóki, Julien Babinot, Vlad Martin-Diaconescu, Sonia Mallet-Ladeira, Yago García-Rodeja, et al.. Ligand-enabled oxidation of gold(i) complexes with o-quinones. Chemical Science, 2022, 13, pp.10499 - 10505. ⟨10.1039/d2sc03724f⟩. ⟨hal-03842055⟩
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