Articulo
X-ray diffraction and IR spectroscopic characterization of AgLn IIITiO4 oxides related to the K2NiF4 structural type
Autor
Lavat, Araceli Elisabet
Barán, Enrique José
Institución
Resumen
Ternary oxides of the type AgLnIIITiO4 (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 K 2NiF4 structural type, with the AgI and Ln III 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 NaLnIIITiO4 materials. Centro de Química Inorgánica