Prabakar, S. ; Rao, K. J. ; Rao, C. N. R. (1991) A MAS NMR investigation of lead phosphosilicate glasses: the nature of the highly deshielded six-coordinated silicon Materials Research Bulletin, 26 (4). pp. 285-294. ISSN 0025-5408
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/002554...
Related URL: http://dx.doi.org/10.1016/0025-5408(91)90023-F
Abstract
29Si and 31P NMR spectra have been studied in a series of lead phosphosilicate glasses. It is found that as the P2O5 content increases, the signal due to the six-coordinated silicon at −212 ppm grows in intensity. Based on partial charge arguments it is suggested that the six-coordinated silicon atoms are surrounded by only phosphorus as second neighbours and are highly desheilded.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Silicon; Lead; Phosphosilicates; Oxides; Glasses |
| ID Code: | 42210 |
| Deposited On: | 02 Jun 2011 06:44 |
| Last Modified: | 03 Jul 2012 04:26 |
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