Effect of interionic interaction on the electronic polarizability, optical basicity and binding energy of simple oxides

被引:140
作者
Dimitrov, V [1 ]
Komatsu, T [1 ]
机构
[1] Nagaoka Univ Technol, Dept Chem, Nagaoka, Niigata 9402188, Japan
关键词
simple oxides; interionic interaction; electronic polarizability; optical basicity; binding energy;
D O I
10.2109/jcersj.107.1012
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Interaction parameter A proposed in Yamashita-Kurosawa's theory has been calculated for numerous single component oxides. It has been assumed that in the case of simple oxides it represents, through the electronic polarizabilities of the ionic pair the interaction between oxide ion and the corresponding cation due to overlapping of their outermost electronic orbitals to form a chemical bond. It has been proposed that the parameter A is closely related to the polarizability of the oxide ion as well as the optical basicity of the oxides. The obtained almost linear distribution of the basicity in respect to Yamashita-Kurosawa's parameter it could be used as an optical basicity scale for simple oxides. Systematic decrease of the O1s and outermost cation binding energies with decreasing interaction parameter has been established. It has been associated with decreased charge overlapping between electronic shells of the oxide ion and cation, which relates to large electronic polarizabilities of both cation and oxide ion and increased optical basicity, that is increased ionicity of the chemical bond.
引用
收藏
页码:1012 / 1018
页数:7
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