X-ray diffraction and IR spectroscopic characterization of AgLnIII TiO4 oxides related to the K2NiF4 structural type

Journal of the Brazilian Chemical Society

Araceli E. Lavat²  Enrique J. Baran¹ 

[1] ,Universidad Nacional del Centro de la Provincia de Buenos Aires Facultad de Ingeniería Departamento de Ingeniería QuímicaOlavarría,Argentina

关键词: mixed-oxides;    K2NiF4 structure;    X-ray diffraction;    indexing;    IR spectroscopy;   

DOI  :  10.1590/S0103-50532006000700035

来源: SciELO

【 摘 要 】

Ternary oxides of the type AgLnIII TiO4 (with Ln = La, Nd, Sm, Eu, Gd, Dy, Y) have been prepared and their unit cell parameters determined by X-ray powder diffractometry. They are related to the K2NiF4 structural type, with the AgI and LnIII cations distributed in an ordered way on the K-sub lattice. The infrared spectra of these materials were recorded and discussed on the basis of their structural peculiarities and by comparison with those of related oxides. They show a close relationship with the parent NaLnIII TiO4 materials.

【 授权许可】

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