Synthesis and characterization of new hydroxycarboxylate compounds obtained in the redox reaction between Fe(NO 3) 3 and diol

► New hydroxycarboxylate compounds obtained in the redox reaction Fe(NO 3) 3-diols. ► Octahedral stereochemistry with [Fe(III)O 6] chromophore for the synthesized complexes. ► Fe(III) glyoxylate and succinate as precursors of iron oxide γ-Fe 2O 3 nanoparticles. The paper presents experimental studie...

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Bibliographic Details
Published in:Thermochimica acta 2011-05, Vol.519 (1), p.22-27
Main Authors: Stefanescu, O., Vlase, T., Vlase, G., Doca, N., Stefanescu, M.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Glyoxylate
Hydroxycarboxylates
Inorganic and organomineral polymers
Physicochemistry of polymers
Preparation
Succinate
Thermal analysis
γ-Fe 2O 3
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Summary:► New hydroxycarboxylate compounds obtained in the redox reaction Fe(NO 3) 3-diols. ► Octahedral stereochemistry with [Fe(III)O 6] chromophore for the synthesized complexes. ► Fe(III) glyoxylate and succinate as precursors of iron oxide γ-Fe 2O 3 nanoparticles. The paper presents experimental studies and structural investigations of two new Fe(III) hydroxycarboxylate coordination compounds. The homopolynuclear complex combinations of Fe(III) glyoxylate and succinate type were obtained in the redox reaction between Fe(NO 3) 3 and diols (1,2-ethanediol and 1,4-butanediol). The synthesized coordination compounds and the products formed during their thermal conversion were characterized by thermal analysis (in air and nitrogen), FT-IR and UV–VIS spectrometry, Mössbauer spectrometry, electron microscopy and XRD. By thermal decomposition of the complex combinations, at 300 °C, the well crystallized pure phase γ-Fe 2O 3 as nanoparticles were formed.
ISSN:0040-6031
1872-762X
DOI:10.1016/j.tca.2011.02.024