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arXiv · 1512.00654

Dynamics of Fe atoms in Fe-gluconate as seen by Mössbauer spectroscopy

S. M. Dubiel·J. Cieslak
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Abstract

Fe-gluconate was studied by means of the Mössbauer spectroscopy in the temperature interval of 80-305K. The measured spectra were analyzed in terms of two subspectra and, alternatively, two distributions of the quadrupole splitting. The major component (ca.85%) was identified as due to high-spin Fe2+ ions while the identification of the minor component (ca.15%) was not unique: some characteristics are in favour of the high-spin Fe3+ state while other ones are consistent with the low-spin Fe2+ state. Values of the Debye temperature were determined for both phases from a temperature dependence of the center shift as well as from that of the spectral area. The force constant for the high-spin ferrous atoms was evaluated to be equal to 44 N/m (243 cm-1).

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S. M. Dubiel, J. Cieslak. 2015-12-02. Dynamics of Fe atoms in Fe-gluconate as seen by Mössbauer spectroscopy. https://doi.org/10.1088/0022-3727%2F49%2F13%2F135401

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