Gold Chains and Gold Pairs in the Layer Structure of 1,1,1-Tris[chloro-gold(I)-dimethylphosphanylmethyl]ethane

Albert Stützer, Peter Bissinger, Hubert Schmidbaur

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The title compound, 1,1,1-tris[chloro-gold(I)-dimethylphosphanylm ethyl]ethane (1) has been prepared from the tripodal tertiary phosphine ligand and three equivalents of chloro(dimethylsulfide)gold(I) in good yield. The complex has been characterized by means of its 1H, l3C, and 31P NMR, and l97Au Mößbauer spectra, by elemental analysis, and by a single crystal X-ray structure analysis. The crystals have a layer structure. In each of the crystallographically equivalent individual molecules two of the gold(I) centers are associated via a short intramolecular Au…Au contact [3.077(2) Å]. These pairs of gold atoms are aligned in chains through mrermolecular Au…Au contacts of similar distances [3.084(2) Å], According to this structural principle, strings of complex molecules are formed. The third Au(I) center of each of these molecules is associated with a similar unit of a neighbouring chain through interstrand Au…Au contacts [3.179(3) Å], thus crosslinking the chains to give a layer structure. The Au…Au contacts are recognized to be the main structure-determining force for the conform ation of the molecules and their packing in this solid phase.

Original languageEnglish
Pages (from-to)1261-1265
Number of pages5
JournalZeitschrift fur Naturforschung - Section B Journal of Chemical Sciences
Issue number9
StatePublished - 1 Sep 1992
Externally publishedYes


  • Crystal Structure
  • Gold(I) Complexes
  • Gold…Gold Contacts
  • Phosphine Gold Complexes


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