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Ferrous porphyrins with an “unusually” large quadrupole splitting

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Abstract

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).

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Authors and Affiliations

  1. Institute of Chemistry, Univesity of Wroclaw, F. Joliot-Curie 14, PL-50383, Wroclaw, Poland

    K. Drabent, L. Latos-Grazynski & A. Wysłouch

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  1. K. Drabent
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  2. L. Latos-Grazynski
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  3. A. Wysłouch
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Drabent, K., Latos-Grazynski, L. & Wysłouch, A. Ferrous porphyrins with an “unusually” large quadrupole splitting. Hyperfine Interact 52, 329–334 (1990). https://doi.org/10.1007/BF02395655

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  • DOI: https://doi.org/10.1007/BF02395655

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