Spectroscopic investigations of iron(II) and iron(III) oxalates
In an attempt to contribute to a better characterization of FeII and FeIII oxalate complexes, an investigation of their vibrational (infrared and Raman) and 57Fe-Mössbauer spectra was performed. It is shown that the two polymorphs, α and β, of FeC2O42H2O cannot be accurately differentiated with any of these spectroscopic methods, demonstrating the high structural similarity of these two crystalline forms. Partially deuterated samples of β-FeC2O42H2O were also investigated to improve the vibrational-spectroscopic analysis. In the case of Fe2(C2O4)34H2O, a structural model, derived from results of combined vibrational and Mössbauer data, could be proposed. The 298 K Mössbauer spectrum for this complex is discussed in detail for the first time.
Main Authors: | , , , , , , |
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Format: | Digital revista |
Language: | English |
Published: |
Sociedade Brasileira de Química
2009
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Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532009000300006 |
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