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Mössbauer studies on one-dimensional iron phthalocyanines

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Summary

Magnetic moments and57Fe Mössbauer spectra at room temperature and at liquid nitrogen temperature of polynuclear ligand-bridged iron phthalocyanines, FePcL (L = pyrazine and 4,4′-bipyridyl), are reported. The experimental data are in agreement with a pseudo-octahedral environment around the iron(II) cation. Partially oxidized derivatives, FePc(pz)I0.26 and FePc(bipy)I1.06 have been synthesized and their57Fe Mössbauer spectra and magnetic moments within the same temperature range obtained. Oxidation is shown to be metal centred and the iodine is found to be in I− form for FePc(pz)0.26 and as both I− and I −3 species for FePc(bipy)I1.06. While the magnetic moment of FePc(pz) increases upon oxidation, the opposite occurs for FePc(bipy).

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Authors and Affiliations

  1. Departamento de Optica, Facultad de Física, Universidad de Barcelona, Spain

    Elías Molins, Amílcar Labarta & Javier Tejada

  2. Departamento de Química Inorgánica, Facultad de Química, Universidad de Barcelona, Diagonal 647, Barcelona 28, Spain

    Amparo Caubet & Santiago Alvarez

Authors
  1. Elías Molins
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  2. Amílcar Labarta
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  3. Javier Tejada
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  4. Amparo Caubet
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  5. Santiago Alvarez
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Molins, E., Labarta, A., Tejada, J. et al. Mössbauer studies on one-dimensional iron phthalocyanines. Transition Met Chem 8, 377–380 (1983). https://doi.org/10.1007/BF00618578

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