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1981 (1)
1Author    Heinrich Nöth, Robert Rurländer, Peter WolfgardtRequires cookie*
 Title    Solutions of Lithium Tetrahydrido Aluminates in Ethers: a 'Li and 27 AI NMR Study  
 Abstract    Solutions of LiAlH4 in tetrahydrofuran (THF), glycoldimethylether (monoglyme), diglycoldimethylether (diglyme) and triglycoldimethylether (triglyme) as well as solutions of LiAlH4/THF in toluene have been investigated by 7 Li and 27 A1 NMR. It was found that <5 27 A1 is nearly independent of the solvent as is 1 J(A1H). However, the line width of the 27 A1 NMR signal shows strong solvent influences and, in addition, concentration and temperature dependence. Intermolecular hydride exchange becomes rapid in solutions of monoglyme and triglyme at room temperature. This can also be shown by the H/D exchange between LiAlH4 and L1AID4. <5 7 Li data indicate that Li is hexacoordinated in the series of glycoldimethylethers, and LiAlH4 in diglyme seems to be the system in which the AIH4 moiety is least affected by ion pair or triple ion formation. 
  Reference    (Z. Naturforsch. 36b, 31—41 [1981]; received July 28 1980) 
  Published    1981 
  Keywords    Lithium Tetrahydroaluminates, Lithium Tetradeuterioaluminates, 7 Li NMR Spectra, 27 A1 NMR Spectra 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-0031.pdf 
 Identifier    ZNB-1981-36b-0031 
 Volume    36