Pedro J. Aymonino
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The infrared and laser-Raman spectra of crystalline Pb2V2O7 are reported and discussed with the aid of a “Site Symmetry”-analysis.
The infrared and laser-Raman spectra of crystalline Ba2V2O7 are reported and discussed by means of a “Site Symmetry” analysis.
Mn2As2O7 has been obtained by solid state reaction between As2O5 and MnCO3 at 600 °C and also by thermal decomposition of NH4MnAsO4·H2O. The crystallographic study has shown that the substance… Continue Reading
The infrared and laser-Raman spectra of Sr2V2O7 are reported and discussed by means of a “Site Symmetry” analysis. The principal force constants as well as the mean amplitudes of vibration for the… Continue Reading
The infrared spectra of the isostructuralMVO3 compounds (M=K, Rb, Cs, Tl, NH4), consisting in an array of infinite tetrahedral chains, are reported and discussed with the aid of a simplified factor… Continue Reading
The thermal behaviour of Na5[Fe(CN)5SO3]·2H2O has been investigated by thermogravimetric and differential thermal analysis. Detailed studies of the decomposition residues using various… Continue Reading
Infrared spectra of crystalline Co3(VO4)2, Ni3(VO4)2 and Zn3(VO4)2 as well as the laser-Raman spectrum of the last mentioned compound are reported and discussed. A series of solid solutions of the… Continue Reading