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57Fe Mössbauer probe of spin crossover thin films on a bio-membrane

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Abstract

An illustrious complex [Fe(ptz)6](BF4)2 (ptz = 1-propyl-tetrazole) (1) which was produced in the form of submicron crystals and thin film on Allium cepa membrane was probed by 57Fe Mossbauer spectroscopy in order to follow its intrinsic spin crossover. In addition to a weak signal that corresponds to neat SCO compound significant amount of other iron compounds are found that could have morphed from 1 due to specific host-guest interaction on the lipid-bilayer of bio-membrane. Further complimentary information about biogenic role of membrane, was obtained from variable temperature Mossbauer spectroscopy on a ~5% enriched [57Fe(H2O)6](BF4)2 salt on this membrane.

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Authors and Affiliations

  1. Institute of Condensed Matter and Nanosciences, Université Catholique de Louvain, Place L. Pasteur 1, 1348, Louvain-la-Neuve, Belgium

    Anil D. Naik & Yann Garcia

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  1. Anil D. Naik
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  2. Yann Garcia
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Correspondence to Yann Garcia.

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Naik, A.D., Garcia, Y. 57Fe Mössbauer probe of spin crossover thin films on a bio-membrane. Hyperfine Interact 206, 7–11 (2012). https://doi.org/10.1007/s10751-011-0436-z

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