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'Carbonyltungsten Olefin Complexes' in keywords
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1985 (1)
1980 (1)
1Author    Marion Lindemami, Reinhard Benn, Richard Goddard, Carl KrügerRequires cookie*
 Title    Friedrich-Wilhelm Grevels  
 Abstract    Extended photolysis of M(CO)ö (M = W, Mo) and methyl acrylate or dimethyl fumarate results in formation of (^ 2 -olefin)2M(CO)4 via the less stable (^ 2 -olefin)M(CO)5 complexes. X-ray structure analysis of (^-methyl acrylate)2W(CO)4 reveals the trans-staggered arrangement of the olefinic ligands. Rotational barriers are determined by variable temperature NMR spectroscopy. 
  Reference    Z. Naturforsch. 35b, 1298—1309 (1980); eingegangen am 2. Mai 1980 
  Published    1980 
  Keywords    Carbonyltungsten Olefin Complexes, Photochemistry, NMR Spectra, Fluxional Behaviour, X-ray 
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 TEI-XML for    default:Reihe_B/35/ZNB-1980-35b-1298.pdf 
 Identifier    ZNB-1980-35b-1298 
 Volume    35 
2Author    Heinz Berke, Gottfried Huttner, Christoph Sontag, Laszlo ZsolnaiRequires cookie*
 Title    Dynamics and Structure of Phosphite Substituted Olefintungsten Complexes  
 Abstract    The barriers of rotation of olefin ligands in (OC) 3 LL'W(olefin) complexes, L — P(OMe) 3 , L' = P(OMe) 3 or P(OEt) 3 , olefin = ethylene, methylmaleate, methylfumarate, methylacrylate (1—4) have been determined from D-NMR measurements. The preferred olefin orientation has been deduced from an X-ray analysis of the tricarbonyl-triethylphosphite-trimethylphosphite-methyl-maleatetungsten compound 2. The influence of steric and electronic factors on the rotational process has been discussed by use of EHT-calculations. 
  Reference    Z. Naturforsch. 40b, 799—807 (1985); eingegangen am 30. Dezember 1984/14. Februar 1985 
  Published    1985 
  Keywords    Carbonyltungsten Olefin Complexes, Phosphite Substitution, D-NMR Spectra, EHT-Calculations, X-Ray 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0799.pdf 
 Identifier    ZNB-1985-40b-0799 
 Volume    40