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Si chemical shift tensors of silyl silicate cages |
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| Authors: | M Backer A -R Grimmer N Auner P John and J Weis |
| Institution: | a Fachinstitut für Anorganische und Allgemeine Chemie der Humboldt-Universität zu Berlin, Hessische Straβe 1-2, D-10115, Berlin, Germany b Fachinstitut für Anorganische und Allgemeine Chemie, der Humboldt-Universität zu Berlin, Auβenstelle Adlershof, Rudower Chaussee 5, Haus 4.1; D-12489, Berlin, Germany c Wacker-Chemie Gmbh Geschäftsbereich S, Werk Burghausen; Johannes-Heβ-Str. 24, D-84489, Burghausen, Germany |
| Abstract: | 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. |
| Keywords: | Anisotropy Chemical shift tensors Linewidth 29Si NMR Silyl silicate cages |
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