Is the hematin derived from dodecaphenylporphyrin a μ-oxo dimer? |
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| Authors: | T. Ohya J. Takeda M. Sato |
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| Affiliation: | (1) Laboratory of Biophysics, Faculty of Pharmaceutical Sciences, Teikyo University, Sagamiko, Kanagawa 199-0195, Japan |
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| Abstract: | We have prepared DPP-hematin (DPP?=?2, 3, 5, 7, 8, 10, 12, 13, 15, 17, 18, 20-dodecaphenylporphyrin), and characterized it by Mössbauer and magnetic measurements. It is concluded that DPP-hematin is most likely a monomer, as is expected from the distorted nonplanar structure of the porphyrin, in contrast to usual hematins: hematins derived from usual porphyrins are μ-oxo dimers. |
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| Keywords: | hematin dodecaphenyl porphyrin iron porphyrin complexes spin admixture M?ssbauer spectra |
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