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https://libjncir.jncasr.ac.in/xmlui/handle/10572/1121| Title: | 29Si NMR chemical shifts in silicates |
| Authors: | Prabakar, S Rao, K J Rao, C N R |
| Keywords: | Nuclear Magnetic-Resonance Abinitio Calculations Mas NMR Glasses Angles Aluminosilicates Zeolites Polymorphs |
| Issue Date: | 30-Aug-1991 |
| Publisher: | Elsevier Science BV |
| Citation: | Chemical Physics Letters 183(3-4), 176-182 (1991) |
| Abstract: | 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, δ(ppm)=28.4 [1−exp(−P)]−110.5, besides having predictive value, satisfactorily accounts for all the available chemical-shifts data on silicates and shows the right kind of limiting behaviour, with δ approaching the Q0 value at large P. |
| Description: | Restricted Access |
| URI: | https://libjncir.jncasr.ac.in/xmlui/10572/1121 |
| Other Identifiers: | 0009-2614 |
| Appears in Collections: | Research Papers (Prof. C.N.R. Rao) |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 1991.19.pdf Restricted Access | 552.6 kB | Adobe PDF | View/Open Request a copy |
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