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'Dipolar coupling' in keywords Facet   Publication Year 1995  [X]
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1995[X]
1Author    M. Born, C. Feike, H. W. Jäger, SpiessRequires cookie*
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 Abstract    Dedicated to Prof. W . Müller-Warmuth on the occassion of his 65th birthday Recently, 31P two-dimensional (2D) NMR has been proposed as a powerful tool for direct investigations of the connectivities between the Q" units in glasses, i.e. the medium-range order. In this paper, the principles of these experiments and applications to both polycrystalline Mg2P20 7 and a Na20 -P 2C>5 glass are demonstrated, including a theoretical description and modelling of the polarization transfer between the two inequivalent phosphorus sites in the magnesium pyrophos­ phate. 2 D 31P E x c h a n g e N M R : A new A p p r o a c h f o r a D ir e c t P r o b in g o f th e C o n n e c tiv itie s o f Q 1 U n its in G la s s e s 
  Reference    Z. Naturforsch. 50a, 169—176 (1995); received September 26 1994 
  Published    1995 
  Keywords    Exchange NMR, Connectivities, Phosphate glasses, Dipolar coupling, MAS 
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 TEI-XML for    default:Reihe_A/50/ZNA-1995-50a-0169.pdf 
 Identifier    ZNA-1995-50a-0169 
 Volume    50