Infrared and Raman spectroscopic studies of glasses with NASICON - type chemistry

Rao, K. J. ; Sobha, K. C. ; Kumar, Sundeep (2001) Infrared and Raman spectroscopic studies of glasses with NASICON - type chemistry Proceedings of the Indian Academy of Sciences - Chemical Sciences, 113 (5 & 6). pp. 497-514. ISSN 0253-4134

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Official URL: http://www.ias.ac.in/chemsci/Pdf-OctDec2001/Pc3108...

Abstract

Structures of NASICON glasses of the general formula AB2(PO4)3, where A = Li, Na or K and B = Fe, Ga, Ti, V or Nb, have been investigated using vibrational (IR and Raman) spectroscopies. Phosphate species appear to establish an equilibrium via a disproportionation reaction involving a dynamical bond-switching mechanism where both charge and bonds are conserved. B ions in the system acquire different coordinations to oxygens. Alkali ions cause absorptions due to cage vibrations. All the observed spectroscopic features are consistent with speciation involving disproportionation reactions.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:NASICON Glasses; Dynamical Bond-switching Mechanism; Disproportionation Reactions
ID Code:91055
Deposited On:16 May 2012 08:32
Last Modified:19 May 2016 05:01

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