Please use this identifier to cite or link to this item: http://lib.jncasr.ac.in:8080/jspui/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: http://hdl.handle.net/10572/1121
Other Identifiers: 0009-2614
Appears in Collections:Research Papers (Prof. C.N.R. Rao)

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