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1995 (1)
1Author    C. Ogric, W. Schütt, T. Lehotkay, E. Herdtweck, F. R. KreißlRequires cookie*
 Title    Umwandlung von ?72-Thiocarbenkomplexen des Molybdäns und Wolframs in Metalla-thia-cyclopropan-Systeme Conversion of ?/2-Thiocarbene Complexes of M olybdenum and Tungsten to Metalla-thio-cyclopropane Systems  
 Abstract    Cationic ^2-thiocarbene complexes of molybdenum and tungsten [Cp(CO)2M =C(R)S-Me][BF4] (M = Mo, W; R = Ph, Tol; L = CO, PM e3) react with the germylene G e{N('Bu)CH 2CH2N('Bu)}, the plumbylene Pb{N(SiM e3)2}2, or with sodium azide and sodium thiosulfate to give neutral metalla-thia-cyclopropane com plexes C p(CO)2-M -C(R)(SM e)SM e. Instead of the expected cycloaddition or substitution reactions the formal addition of thiomethanolat at the carbene carbon atom is observed. On treating the corre­ sponding trimethylphosphine substituted /;2-thiocarbene com plex of molybdenum [Cp(CO)(PM e3)M o=C(Tol)SM e][BF4] with diethylamine or N,N,N',N'-tetramethylguanidine a cationic molybda-thia-cyclopropane system is formed. The products have been characteri­ zed by 'H, 13C, 31P NMR, IR and mass spectra. The crystal structure of 5a has been determin­ ed; space group with a = 1340,4(2), b -1097,7(1), c = 1101,8(5) pm and Z = 4. 
  Reference    Z. Naturforsch. 50b, 1839—1844 (1995); eingegangen am 11. Mai 1995 
  Published    1995 
  Keywords    ?72-Thiocarbene Complexes, Molybdenum, Tungsten, Carbon Sulfur Coupling 
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 TEI-XML for    default:Reihe_B/50/ZNB-1995-50b-1839.pdf 
 Identifier    ZNB-1995-50b-1839 
 Volume    50