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Si chemical shifts

โœ Scribed by Traficante, Daniel D.


Book ID
101275948
Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
47 KB
Volume
9
Category
Article
ISSN
1043-7347

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29Si NMR chemical shifts in silicates
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29Si chemical shifts in a wide variety of silicates in crystalline, glassy and gel states have been related to a parameter, P, which takes into account the electronegativity and the structural description of the silicate units as well as the ionic potential of the modifier cation. The relation, G(pp

29Si chemical shift tensors of silyl sil
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Static and 29Si CP MAS spectra (spinning rates of 2000 and 500 Hz) of six silyl silicate cages are analyzed by deconvolution and simulation. The principal values of the various 29Si chemical shift tensors provide information about the point symmetry of the Si sites. The intensities of the signals co