Gold(I) thiosulfonate complexes

Patric Römbke, Annette Schier, Frank Wiesbrock, Hubert Schmidbaur

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17 Scopus citations


A series of seven gold(I) p-tolylthiosulfonate complexes of the general type (L)A-SS(O)2C6H4-4-Me have been prepared from the reaction of silver p-tolylthiosulfonate with the corresponding precursor complexes (L)AuCl in dichloromethane. Yields in excess of 90% were obtained throughout for tertiary phosphine and isocyanide ligands L=PMe3, PPh3, Ph2(2-Py)P, (4-Me2NC6H4)Ph2P, iPrNC, and tBuNC. The complexes are surprisingly stable and undergo controlled decomposition well above 100°C. The crystal and molecular structures have been determined for three representative examples. The Me3P and Ph3P complexes form dimers with short aurophilic bonding [Au-Au 2.9955(3) and 3.0509(2) Å] in a crossed-swords conformation, while for the tBuNC complex the monomers with their linear five-atom axes appear as only loosely aggregated dimers with a parallel head-to-tail arrangement [Au-Au 3.5423(3) Å]. In all cases the p-tolylthiosulfonate ligand is S-bonded to the metal center.

Original languageEnglish
Pages (from-to)123-128
Number of pages6
JournalInorganica Chimica Acta
StatePublished - 15 Apr 2003
Externally publishedYes


  • Crystal structures
  • Gold complexes
  • Thiosulfonate complexes


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