RESUMO
The monoclinic phosphates with K3Ln(PO4)2 (Ln=rare earth) formula were synthesized. Their infrared and Raman spectra have been reported and analysed. The results of a force field calculation for K3Nd(PO4)2 are presented.
Assuntos
Difosfatos/química , Metais Terras Raras/química , Espectrofotometria Infravermelho , Análise Espectral Raman , Estrutura MolecularRESUMO
The monoclinic pyrophosphates with AMP2O7 formula were synthesized. Their infrared and Raman spectra have been reported and analysed. The results of a force field calculation for CaCuP2O7 are presented.
Assuntos
Difosfatos/química , Estrutura Molecular , Espectroscopia de Infravermelho com Transformada de Fourier , Análise Espectral RamanRESUMO
In this paper, a vitreous domain of the ternary system: xLa2O3-yMgO-zB2O3 characterised by X-ray diffraction is shown. Structural approach using vibrational spectroscopy and optical probe is realized for some of these glasses and compared to crystalline LaMgB5O10.
Assuntos
Compostos de Boro/química , Lantânio/química , Óxido de Magnésio/química , Óxidos/química , Cristalização , Cristalografia por Raios X , Európio/química , Vidro/química , Estrutura Molecular , Espectrometria de Fluorescência , Espectroscopia de Infravermelho com Transformada de Fourier , Análise Espectral RamanRESUMO
The infrared and Raman spectra of triclinic phosphates SrM2(PO4)2 where M = Co, Ni have been reported and analysed. The results of a force field calculation for SrNi2(PO4)2 are presented.