29Si NMR chemical shifts in silicates

Prabakar, S and Rao, KJ and Rao, CNR (1991) 29Si NMR chemical shifts in silicates. In: Chemical Physics Letters, 183 (3-4). pp. 176-182.

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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.

Item Type:	Journal Article
Publication:	Chemical Physics Letters
Publisher:	Elsevier science
Additional Information:	Copyright of this article belongs to Elsevier science.
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	30 Nov 2010 08:58
Last Modified:	30 Nov 2010 08:58
URI:	http://eprints.iisc.ac.in/id/eprint/34127

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