Temperature dependence of the Mossbauer parameters in the iron(II) ethyl phosphonate Fe(II)(PO3C2H5)center dot H2O
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Date
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Palvadeau, P.
Queignec, M.
Bujoli, B.
Papaefthymiou, V.
Bakas, T.
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peer reviewed
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Materials Research Bulletin
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Fe-57 Mossbauer measurements have been performed on the lamellar iron (II) ethylphosphonate Fe(II)(C2H5PO3). H2O. Mossbauer parameters have been studied as a function of temperature in the paramagnetic state (above 28 K). In the temperature range 150-200 K this compound has been found to undergo a phase transition resulting in a discontinuity in the quadrupole splitting Delta E. This unusual behavior was ascribed to a structural change and not to a transition from an ordered to a quasi-liquid state of the water molecule and/or CH2-CH3 moieties, Results of a preliminary infrared study supports this hypothesis.
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inorganic compounds, layered compounds, infrared spectroscopy, mossbauer spectroscopy
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<Go to ISI>://A1996UK36200012
http://ac.els-cdn.com/S0025540896000372/1-s2.0-S0025540896000372-main.pdf?_tid=b6ed9232f0eeef1ac0b58672909fe619&acdnat=1334136316_1abcbdb0e41bf211563831f9e6438666
http://ac.els-cdn.com/S0025540896000372/1-s2.0-S0025540896000372-main.pdf?_tid=b6ed9232f0eeef1ac0b58672909fe619&acdnat=1334136316_1abcbdb0e41bf211563831f9e6438666
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en
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Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών