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Showing papers by "Enrique J. Baran published in 1987"


Journal ArticleDOI
TL;DR: The Raman spectra of polycrystalline samples of the metavanadates MIIV2O6 (with M = Ca, Cd, Cu and Mg), belonging to the brannerite structural type, have been recorded as mentioned in this paper.
Abstract: The Raman spectra of polycrystalline samples of the metavanadates MIIV2O6 (with M = Ca, Cd, Cu and Mg), belonging to the brannerite structural type, have been recorded A general assignment, supported by comparisons with known vibrational properties of other oxovanadium species, is proposed The compounds only give poorly defined IR spectra, which are not useful for the analysis of the vibrational behaviour

31 citations


Journal ArticleDOI
TL;DR: The room temperature 57Fe-Mossbauer spectrum and magnetic susceptibility measurements, in a wide temperature range, demonstrate that the iron-tetraaquabis(saccharinate) complex contains Fe(II) as a high spin species in an octahedral environment as discussed by the authors.

9 citations



Journal ArticleDOI
TL;DR: Two new biuret/vanadyl(IV) complexes, a normal bis(biuret) oxygen-bonded VO(biur)2Cl2·3H2O and a polymeric one, with bridging-bidentate sulfato groups, were prepared in this paper.

6 citations


Journal ArticleDOI
TL;DR: In this paper, the vibrational and reflectance-electronic spectra of γ−Zn 2 Co(PO 4 ) 2, a compound belonging to the farringtonite-structural type, have been reported and discussed.

4 citations


Journal ArticleDOI
TL;DR: In this article, an assignment of the electronic spectrum of the title compound, based on comparisons with spectral data of different CrO 3 X species, is proposed, and the resonance Raman results also support some of the proposals made.

4 citations


Journal ArticleDOI
TL;DR: The resonance Raman effect in solid Na5[Cu(HIO6)2]16H2O at room temperature was investigated and the experimental excitation profiles were obtained as mentioned in this paper.
Abstract: The resonance Raman effect in solid Na5[Cu(HIO6)2].16H2O at room temperature was investigated and the experimental excitation profiles were obtained. From the analysis of the overtone progression of the ν1(A1g) mode, corresponding to the IO symmetric stretching vibration, the X11 anharmonicity constant was determined. The dependence of the Raman intensities on the scattered frequency is briefly discussed.

2 citations




Journal ArticleDOI
TL;DR: In this paper, the main force constants for Mn2O7 have been calculated from recently reported infrared data, using a simplified molecular model, and mean amplitudes of vibration and thermodynamic functions are also reported.
Abstract: Vibrational Properties and Thermodynamic Functions of Mn2O7 The main force constants for Mn2O7 have been calculated from recently reported infrared data, using a simplified molecular model. Mean amplitudes of vibration and thermodynamic functions are also reported. The results are briefly discussed and some comparisons with related species are made.

1 citations


Journal ArticleDOI
TL;DR: In this article, an assignment of the electronic spectrum of the title compound, based on comparisons with spectral data of different CrO 3 X species, is proposed, and the resonance Raman results also support some of the proposals made.
Abstract: The resonance Raman and electronic spectra of the title compound have been recorded and briefly discussed. An assignment of the electronic spectrum, based on comparisons with spectral data of different CrO 3 X species, is proposed. The resonance Raman results also support some of the proposals made.