Rao, KJ and Sobha, KC and Kumar, Sundeep (2001) Infrared and Raman spectroscopic studies of glasses with NASICON-type chemistry. In: Proceedings of the Indian Academy of Sciences Chemical Sciences, 113 (5). pp. 497-514.
Structures of NASICON glasses of the general formula AB(2)(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:||Journal Article|
|Additional Information:||Copyright for this article belongs to Indian Academy of Sciences.|
|Keywords:||NASICON glasses;dynamical bond-switching mechanism;dispropor-tionation reactions|
|Department/Centre:||Division of Chemical Sciences > Solid State & Structural Chemistry Unit|
|Date Deposited:||10 Sep 2004|
|Last Modified:||19 Sep 2010 04:16|
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