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29Si chemical shift tensors of silyl silicate cages

✍ Scribed by M. Backer; A.-R. Grimmer; N. Auner; P. John; J. Weis

Book ID
104357892
Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
939 KB
Volume
9
Category
Article
ISSN
0926-2040

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✦ Synopsis

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 correspond sufficiently well with the stoichiometries. 0 1997 Elsevier Science B.V.

πŸ“œ SIMILAR VOLUMES

29Si NMR chemical shifts in silicates
29Si NMR chemical shifts in silicates
✍ S. Prabakar; K.J. Rao; C.N.R. Rao πŸ“‚ Article πŸ“… 1991 πŸ› Elsevier Science 🌐 English βš– 553 KB

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