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Mixed Valence Properties of Oxide Ions in Metal Oxides

Ganguly, P. / Hegde, M. S. / Mohan Ram, R. A. / Sreedhar, K.

Abstract One of the basic criteria for metallicity is the coexistence of neutral and ionic states. It has to be asked whether in oxides of metals which exhibit itinerant electron behaviour such mixed valence is exhibited by both the cation and anions. Mixed valence in oxides may involve O- or the more stable O2- 2 peroxide species which may be formed according to the equations: 1a $$\text{B}^{\text{n}+} + \text{O}^{2-}\, \rightleftarrows\, \text{B}^{(n-1)+} + \text{O}^- (\text{or}\, 1/2\, \text{O}^{2-})\,..$$ 1b $$\text{B}^{\text{n}+} + 2\text{O}^{2-}\, \rightleftarrows\, \text{B}^{(n-2)+} + \text{O}^{2-}_2\ldots$$

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Mixed Valence Properties of Oxide Ions in Metal Oxides

Ganguly, P. / Hegde, M. S. / Mohan Ram, R. A. / Sreedhar, K.

Abstract One of the basic criteria for metallicity is the coexistence of neutral and ionic states. It has to be asked whether in oxides of metals which exhibit itinerant electron behaviour such mixed valence is exhibited by both the cation and anions. Mixed valence in oxides may involve O- or the more stable O2- 2 peroxide species which may be formed according to the equations: 1a $$\text{B}^{\text{n}+} + \text{O}^{2-}\, \rightleftarrows\, \text{B}^{(n-1)+} + \text{O}^- (\text{or}\, 1/2\, \text{O}^{2-})\,..$$ 1b $$\text{B}^{\text{n}+} + 2\text{O}^{2-}\, \rightleftarrows\, \text{B}^{(n-2)+} + \text{O}^{2-}_2\ldots$$

Mixed Valence Properties of Oxide Ions in Metal Oxides

Ganguly, P. / Hegde, M. S. / Mohan Ram, R. A. / Sreedhar, K.

Abstract One of the basic criteria for metallicity is the coexistence of neutral and ionic states. It has to be asked whether in oxides of metals which exhibit itinerant electron behaviour such mixed valence is exhibited by both the cation and anions. Mixed valence in oxides may involve O- or the more stable O2- 2 peroxide species which may be formed according to the equations: 1a $$\text{B}^{\text{n}+} + \text{O}^{2-}\, \rightleftarrows\, \text{B}^{(n-1)+} + \text{O}^- (\text{or}\, 1/2\, \text{O}^{2-})\,..$$ 1b $$\text{B}^{\text{n}+} + 2\text{O}^{2-}\, \rightleftarrows\, \text{B}^{(n-2)+} + \text{O}^{2-}_2\ldots$$

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Title:

Mixed Valence Properties of Oxide Ions in Metal Oxides

Contributors:

Ganguly, P. (author) / Hegde, M. S. (author) / Mohan Ram, R. A. (author) / Sreedhar, K. (author)

Published in:

Theoretical and Experimental Aspects of Valence Fluctuations and Heavy Fermions ; 695-698

Publication date:

1987-01-01

Size:

4 pages

ISBN:

978-1-4612-8259-4 , 978-1-4613-0947-5

DOI:

https://doi.org/10.1007/978-1-4613-0947-5_123

Type of media:

Article/Chapter (Book)

Type of material:

Electronic Resource

Language:

English

Keywords:

Lead Oxide , Knight Shift , Formal Oxidation State , Structural Chemistry Unit , Peroxide Species Physics , Optics and Electrodynamics , Characterization and Evaluation of Materials

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