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Proceedings of the National Academy of Sciences of the United States of America logoLink to Proceedings of the National Academy of Sciences of the United States of America
. 1973 Sep;70(9):2582–2584. doi: 10.1073/pnas.70.9.2582

Resonance Raman Studies of the Electronic State of Oxygen in Hemerythrin

John B R Dunn 1, Duward F Shriver 1, Irving M Klotz 1
PMCID: PMC427060  PMID: 16592107

Abstract

Excitation of oxyhemerythrin with radiation within the envelope of its strong oxygen → iron chargetransfer band generates two Raman frequencies, at 844 cm-1 and 500 cm-1. These are assigned to O-O and Fe-O stretching modes. Confirmation of these assignments is provided by the observed shifts in frequency when 16O2 is substituted by 18O2 as ligand. Comparison of the position of the 844-cm-1 band with band positions of small molecules of known oxidation state clearly establishes that the bound oxygen is in an O22-, peroxide-type, electronic state.

Keywords: oxygen carriers, iron pigments, peroxide, oxygen-18, laser

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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