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'Gold Clusters' in keywords Facet   Publication Year 1997  [X]
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1997[X]
1Author    A.Lexander Sladek, H. Ubert SchmidbaurRequires cookie*
 Title    Bridging of Trigoldsulfonium Clusters by a Silver(I) Ion  
 Abstract    Treatm ent of tris[(triphenylphosphine)gold(I)]-sulfonium tetrafluoroborate with AgBF4 (molar ratio 2:1) in tetrahydrofuran affords a hepta-nuclear mixed-metal cluster trication {[(Ph3P)6Au6AgS2](thf)}3+ as the tetrafluorobor­ ate salt. The crystal structure of the compound has been determ ined by X-ray diffraction. The sil­ ver atom is found in a bridging position between the two Au3S units with short contacts to both sulfur atoms and to three out of six gold atoms. The coordination sphere of the silver atom is com plem ented by a tetrahydrofuran molecule. In di(tri)chlorom ethane solutions there is rapid site exchange of the silver coordination as shown by virtual equivalence of the phosphine ligands on the NM R time scale at ambient temperature. 
  Reference    Z. Naturforsch. 52b, 301—303 (1997); received January 3 1997 
  Published    1997 
  Keywords    Gold Clusters, Silver Bridging, Sulfonium Cations, Mixed Gold/Silver Cluster 
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 TEI-XML for    default:Reihe_B/52/ZNB-1997-52b-0301_n.pdf 
 Identifier    ZNB-1997-52b-0301_n 
 Volume    52