A MAS NMR Investigation of lead phosphosilicate glasses: the nature of the highly deshielded six-coordinated silicon

Prabakar, S and Rao, KJ and Rao, CNR (1991) A MAS NMR Investigation of lead phosphosilicate glasses: the nature of the highly deshielded six-coordinated silicon. In: Materials Research Bulletin, 26 (4). pp. 285-294.

PDF A_MAS_NMR_INVESTIGATION.pdf - Published Version Restricted to Registered users only Download (411kB) | Request a copy

Abstract

$^2^9Si$ and $^3^1P$ NMR spectra have been studied in a series of lead phosphosilicate glasses, It is found that as the $P_2O5$ 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:	Journal Article
Publication:	Materials Research Bulletin
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Keywords:	silican;lead;phosphosilicates;oxides;glasses
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	27 Jun 2007
Last Modified:	17 Jan 2012 05:59
URI:	http://eprints.iisc.ac.in/id/eprint/11276

Actions (login required)

View Item