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'o Phosphanylphenolate Complexes' in keywords
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1998 (1)
1Author    Hans-Friedrich Klein, Alexandra Brand, Gerhard CordierRequires cookie*
 Title    Synthesis and Reactions with CO and C2H4 of Cobalt(I) Complexes Containing Trimethylphosphine and Chelating o-Diphenylphosphanyl- phenolate Ligands  
 Abstract    In tetracoordinate cobalt(I) halide compounds CoX(Ph2P ^ O H)(P M e3)2 (X = CI, Br) o-phos-phanylphenols PhaP^O H are coordinated as phosphane ligands. In the presence o f base chelat­ ing anions Ph2P ^ O _ give rise to pentacoordinate com plexes Co(Ph2 P ^ O)(P M e3)3. M olec­ ular structures are presented for both types o f compounds. The five-membered chelate ring in Co(Ph2P ^ O)(P M e3)3 is resistant to protonation, and ring-opening is not observed in the presence o f CO or C2H4. Replacing one o f the trimethylphosphanes by one o f the 7r-acceptor ligands affords fiuxional com plex m olecules which upon cooling attain definite ground-state geometries out o f a multitude o f possible isomers. 
  Reference    Z. Naturforsch. 53b, 307 (1998); received November 28 1997 
  Published    1998 
  Keywords    Cobalt, o-Phosphanylphenolate Complexes, Synthesis, Structure, Fluxionality 
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 TEI-XML for    default:Reihe_B/53/ZNB-1998-53b-0307.pdf 
 Identifier    ZNB-1998-53b-0307 
 Volume    53