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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
. 1977 Feb;74(2):398–400. doi: 10.1073/pnas.74.2.398

Magnetic properties of oxyhemoglobin.

M Cerdonio, A Congiu-Castellano, F Mogno, B Pispisa, G L Romani, S Vitale
PMCID: PMC392294  PMID: 265510

Abstract

When the magnetic susceptibility of frozen aqueous solutions of human oxyhemoglobin was measured in the range between 25 and 250 K, it showed a temperature-dependent behavior typical of a thermal equilibrium between a ground singlet state and an excited triplet state for two electrons per heme, the energy separation being [2J] = 146 cm-1. By contrast, within the same temperature range, carboxyhemoglobin was found to be diamagnetic, as already reported.

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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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