Improvement in determining the crystal structure of inorganic compounds using powder diffraction data

被引:0
|
作者
Reinaudi, Luis [1 ]
Leiva, Ezequiel P. M. [1 ]
Carbonio, Raul E. [2 ]
机构
[1] Univ Nacl Cordoba, Fac Ciencias Quim, INFIQC, Unidad Matemat & Fis, RA-5000 Cordoba, Argentina
[2] Univ Nacl Cordoba, Fac Ciencias Quim, Dept Fisicoquim, INFIQC, RA-5000 Cordoba, Argentina
关键词
crystal structure determination; global optimization; ionic inorganic compounds; simulated annealing;
D O I
10.1154/1.3012352
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
A new way of incorporating powder diffraction data into a cost function to predict the crystalline structure of inorganic solids is proposed. This approach was applied to the following series of compounds: cubic SrTiO3, tetragonal NaNbO3, TiO2 (anatase), tetragonal CaTiO3, and hexagonal BaTiO3. A tremendous increase in the efficiency of obtaining the correct structure is achieved when a cost function based upon this new approach is applied to these problems. (C) 2008 International Centre for Diffraction Data. [DOI: 10.1154/1.3012352]
引用
收藏
页码:300 / 306
页数:7
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