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'Bifunctional Chiral Phosphanes' in keywords
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1982 (1)
1Author    KlausWilhelm Diemert, Kuchen, Jürgen KutterRequires cookie*
 Title    Meso-rac-Ph(X)P-(CH2>4-P(X)Ph-Liganden in Komplexen des Typs (CO)4Mas(L-L), Untersuchung der Stereoisomerie durch 31 P{ 1 H}-und "Cj 1 H}-NMR-Spektroskopie [1] Meso. rac-Ph(X)P-(CH2)4-P(X)Ph Ligands in Complexes of the Type (CO)4Mcw(L-L), Investigation of Stereoisomerism by 31 P{ 1 H} and 13 C{ 1 H} NMR Spectroscopy [1]  
 Abstract    By reaction of M(CO)Ö (M = Cr, Mo, W) with the bifunctional aminophosphane Ph(NEt2)P-(CH2)4-P(NEt2)Ph (L-L) octahedral complexes (CO)4Mcw(L-L) are obtained. While it is shown by 31 P{ 1 H} NMR spectroscopy, that these complexes contain meso-and rac-(L-L) to a different extent, there is evidence from 13 C{ 1 H} NMR data obtained for the Mo complex, that the rac-ligand always prevails. As racemisation is observed when the Mo complex reacts with HBr to give (CO)4Mo-cis[Ph(Br)P-(CH2)4-P(Br)Ph] an SN 1 -mechanism is suggested for this reaction. 
  Reference    Z. Naturforsch. 37b, 841—844 (1982); eingegangen am 15. Februar 1982 
  Published    1982 
  Keywords    Carbonyl Complexes, Bifunctional Chiral Phosphanes, Stereoisomerism 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-0841.pdf 
 Identifier    ZNB-1982-37b-0841 
 Volume    37