Hyperfine Interactions

, Volume 52, Issue 4, pp 329–334 | Cite as

Ferrous porphyrins with an “unusually” large quadrupole splitting

  • K. Drabent
  • L. Latos-Grazynski
  • A. Wysłouch


High-spin ferrous metalloporphyrins FeII(NCH3TPP)Cl, FeII(NCH3TPP)Br, FeII(NCH3TPP)ClO4, and FeII(NCH3OEP)Cl(NCH3TPP-N-methyltetraphenylporphyrin, NCH3OEP-N-methyloctaethylporphyrin) have been characterized by Mössbauer spectroscopy. Values ofIS (0.8 mm/s versus α-Fe) typical for high-spin ferrous porphyrin and very large quadrupole splittings (≊4 mm/s) have been observed. Iron(II) N-methylporphyrins should be readily detected in proteins by means of Mössbauer spectroscopy. Such parameters are similar to those of symmetrical anionic five coordinate high-spin porphyrins [FeII(TPP)X] (X-halide).


Iron Spectroscopy Thin Film Porphyrin Quadrupole Splitting 


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Copyright information

© J.C. Baltzer AG, Scientific Publishing Company 1989

Authors and Affiliations

  • K. Drabent
    • 1
  • L. Latos-Grazynski
    • 1
  • A. Wysłouch
    • 1
  1. 1.Institute of ChemistryUnivesity of WroclawWroclawPoland

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