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1993 (1)
1Author    H. Ohki, K. Harazono, T. Erata, A. Tasaki, R. IkedaRequires cookie*
 Title    Ionic Diffusion in Cu 6 PS 5 Br Studied by 63 Cu NMR  
 Abstract    Applying 63 Cu NMR technique, we observed exchange between the nonequivalent copper sites in crystalline Cu 6 PS 5 Br, known as a member of the mineral "argyrodite". Below 200 K, where the motion of the copper (I) ion is slow, we could distinguish several nonequivalent copper sites. On increasing the temperature, the chemical exchange between the nonequivalent cation sites was seen on the "Cu NMR spectra. We could determine the activation energy for this motion to be 35 kJ mol -1 , in good agreement with the published ionic conductivity. 
  Reference    Z. Naturforsch. 48a, 1005—1008 (1993); received July 13 1993 
  Published    1993 
  Keywords    Ionic conductor, 63 Cu NMR, Quadrupole interaction 
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 TEI-XML for    default:Reihe_A/48/ZNA-1993-48a-1005.pdf 
 Identifier    ZNA-1993-48a-1005 
 Volume    48