IFLP 13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
artículos
Título:
Spectroscopic characterization of NH4FeP2O7
Autor/es:
BARAN, ENRIQUE J.; MERCADER, ROBERTO C.; PARAJÓN-COSTA, BEATRIZ S.
Revista:
JOURNAL OF MOLECULAR STRUCTURE
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Año: 2019 vol. 1188 p. 234 - 237
ISSN:
0022-2860
Resumen:
The mixed cation diphosphate of composition NH4FeP2O7 has been prepared by heating of adequate mixtures of NH4(H2 PO4) and Fe(NO3)3 ⋅9H2O in concentrated phosphoric acid, and characterized by X-ray powder diffractometry. Its infrared and Raman spectra were recorded and briefly analyzed on the basis of the structural peculiarities of the P2O74− anion and the NH4+ cation, which is demonstrated, do not rotate freely in the lattice. Its 57Fe-Mössbauer spectrum shows that the typical high-spin FeIII O6 octahedra present in the compound exhibit almost no distortion.
