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1999 (1)
1990 (1)
1Author    WolfdieterA. Schenk, Thom As SturRequires cookie*
 Title    Elektronenreiche Ruthenium-Thiolat-Komplexe, Synthese und Reaktionen mit Elektrophilen Electron-Rich Ruthenium Thiolate Complexes, Synthesis and Reactions with Electrophiles  
 Abstract    Ruthenium thiolates [cpRu(PR'3)2(SR)] (PR ' 3 = PPh3, 1/2 dppe, 1/2 dppm, R = Me, C H 2Ph) are obtained from the corresponding chlorides and N aSR. PPh3 is readily exchanged for CO to give the chiral complexes [cpRu(PPh3)(CO)(SR)]. Alkylation with methyl tosylate yields the cations [cpRu(dppe)(SM eR)]+ and [cpRu(PPh3)(CO)(SM eR)]+, which were isolated as their PF6-salts. The neutral carbonyls add dimethyi acetylenedicarboxylate giving five-membered metallocycles. 
  Reference    Z. Naturforsch. 45b, 1495—1498 (1990); eingegangen am 6. Juni 1990 
  Published    1990 
  Keywords    Ruthenium Complexes, Thiolate Complexes, Cycloaddition 
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 TEI-XML for    default:Reihe_B/45/ZNB-1990-45b-1495.pdf 
 Identifier    ZNB-1990-45b-1495 
 Volume    45 
2Author    Biing-Chiau Tzeng, Johann Zank, Annette Schier, Hubert SchmidbaurRequires cookie*
 Title    The Structural Chemistry of GoId(I) Quinoline-2-thiolate and Iodide Complexes of Polytertiary Phosphines  
 Abstract    Treatment of (chloro)gold(I) complexes of di-and tetra-tertiary phosphines with equivalent quantities of sodium quinoline-2-thiolate in methanol / dichloromethane affords the correspond­ ing (phosphine)gold(I) quinoline-2-thiolates in high yields. The di-and tetranuclear complexes, respectively, of a,u>bis(diphenylphosphino)-propane (1), -butane (2) and -pentane (3) and of tris(2-diphenylphosphino-ethyl)phosphine (4) have been obtained as crystalline solids, and the structures of 2 and 4 have been determined by single crystal X-ray diffraction studies. Un­ expectedly, the molecules of 2 are loosely aggregated into strings via weak intermolecular gold-sulfur, not via Au-Au interactions. Compound 4 is a monomeric tetranuclear cluster in the solid state with two intramolecular gold-gold bonds. Bis(2-diphenylphosphino-ethyl)-phenylphosphine (PPP) forms trinuclear complexes with gold(I) chloride, bromide and iodide (5a -c). The iodide complex features a chain structure through intermolecular Au -Au contacts between the two terminal P-Au-I units. The closest contacts between the chains are determined by Au-I and I -I interactions of the central P-Au-I unit. 
  Reference    Z. Naturforsch. 54b, 825—831 (1999); received April 19 1999 
  Published    1999 
  Keywords    Gold(I) Complexes, Thiolate Complexes, Aurophilicity, Hydrogen Bonding, Polytertiary Phos-phine Complexes 
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 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-0825.pdf 
 Identifier    ZNB-1999-54b-0825 
 Volume    54