Prabakar, S and Rao, KJ (1991) MAS NMR studies of ternary silicate glasses. In: Philosophical Magazine B, 64 (4). pp. 401-411.
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Official URL: http://www.tandfonline.com/doi/abs/10.1080/1364281...
Abstract
A series of silicate glasses based on $PbO-B_2O_3-SiO_2, PbO-Al_2O_3-SiO_2, Bi_2O_3-Al_2O_3-SiO_2$ and $PbO-PbF_2-SiO_2$ have been studied using solid-state magic-angle-spinning (MAS) NMR of $^{29}Si, ^{27}A1$ and $^{11}B$ nuclei. Al is found to be always four-coordinated in all these glasses. Si is present mostly as $Q_2$ or $Q_3$. Four-coordinated boron dominates the $^{11}B$ spectra. Calculated partial charges on Al, Si and B have been used to provide a rationale for the observed spectral features.
| Item Type: | Journal Article |
|---|---|
| Publication: | Philosophical Magazine B |
| Publisher: | John Wiley and Sons |
| Additional Information: | Copyright of this article belongs to John Wiley and Sons. |
| Keywords: | glass;nuclear magnetic resonance |
| Department/Centre: | Division of Chemical Sciences > Solid State & Structural Chemistry Unit |
| Date Deposited: | 22 Aug 2007 |
| Last Modified: | 09 Jan 2012 09:10 |
| URI: | http://eprints.iisc.ac.in/id/eprint/10665 |
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