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ICAME 2003 pp 265-272 | Cite as

Spin States of Iron(III) in Highly Saddled Dodecaphenylporphyrin Complexes

  • T. Ohya
  • J. Takeda
  • M. Sato
Conference paper

Abstract

Iron(III) complexes of highly saddled dodecaphenylporphyrin, Fe(DPP)X (X = Cl, Br or I) have been prepared and characterized by Mössbauer, UV-Vis and magnetic measurements. The Mössbauer spectra, recorded at temperatures from 5 to 300 K, contain two components A and B. Component A is attributed to iron(III) in a spin-admixed (S = 3/2, 5/2) state. The UV-Vis spectra of solution samples of these complexes exhibit broad and red-shifted absorption bands. The effective magnetic moments derived from the molar magnetic susceptibilities measured by modified Gouy method at 298 K for X = Cl, Br and I are 5.52, 5.10 and 4.28 μ B, respectively.

Keywords

intermediate-spin iron(III) spin admixture dodecaphenylporphyrin iron porphyrin complexes Mössbauer spectra 

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Copyright information

© Springer Science+Business Media Dordrecht 2004

Authors and Affiliations

  • T. Ohya
    • 1
  • J. Takeda
    • 1
  • M. Sato
    • 1
  1. 1.Laboratory of Biophysics, Faculty of Pharmaceutical SciencesTeikyo UniversitySagamiko, KanagawaJapan

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