Optical Basicity of Titanium(IV) Oxide and Zirconium(IV) Oxide |
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Authors: | John A Duffy |
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Affiliation: | Department of Chemistry, University of Aberdeen, Old Aberdeen, Scotland |
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Abstract: | The relationship between electronic polarizability of oxide(—II), αO2?, and the electron donor power, expressed as the optical basicity, ∧, indicates that ∧(TiO2) is much greater than ∧(SiO2) and is approximately the same as ∧(CaO). Such a high basicity is supported by the trend in the Racah B parameter for the Ni2+ ion in crystalline hosts and is also indicated from αO2? values of glasses containing TiO2. Electronic polarizability and other data for zirconium(IV) media indicate that ZrO2 also has a high basicity, but that ∧(ZrO2) is somewhat less than ∧(TiO2). |
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Keywords: | titania zirconia optical properties electrical properties acids |
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