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1998 (1)
1Author    Michael Schmidt, Hubert SchmidbaurRequires cookie*
 Title    Ligand Redistribution Equilibria in Aqueous Fluoroberyllate Solutions  
 Abstract    The composition of aqueous fluoroberyllate solutions has been studied by 9Be and l9F NMR spectroscopy for various ratios of the beryllium and fluorine concentrations, and at different pH values. The equilibrium constants have been determined for the ligand exchange processes, which involve the species [Be(OH2)4]2+, [BeF(OH2)3]+, [BeF2(OH2)2], [BeF3(OH2)]_ , and [BeFzi]2 -. These equilibria are shifted towards [BeF4]2_ at high pH. No polynuclear fluo­ roberyllates have been detected. The fluoride exchange between the individual species is slow on the NMR time scale at room temperature, and separate sharp signals with the expected multiplicity are therefore recorded. Calculated 9Be chemical shifts are in good agreement with experimental data. 
  Reference    Z. Naturforsch. 53b, 1294—1300 (1998); received July 17 1998 
  Published    1998 
  Keywords    Fluoroberyllates, Beryllium Fluoride, Ligand Redistribution, NMR Data 
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 TEI-XML for    default:Reihe_B/53/ZNB-1998-53b-1294.pdf 
 Identifier    ZNB-1998-53b-1294 
 Volume    53