Abstract
MAGNETIC susceptibility measurements on ferrous and ferric hæmoprotein complexes have led to the bonding of the iron being classified as ‘essentially ionic’ or ‘essentially covalent’, as with other coordination compounds containing elements of the first transition series1, Ferrohæmoglobin, acidic ferrihæmoglobin and its fluoride complex are in the first category, oxy- and carbonmonoxy-ferrohæmoglobin and the azide and cyanide complexes of ferrihæmoglobin are in the second. The electronic state of the iron has accordingly been thought strictly comparable to that in the Fe2+ and Fe3+ aquo-ions and that in the Fe(CN)6 4− and Fe(CN)6 3− complex ions respectively, since the corresponding magnetic susceptibilities are very similar.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 51 print issues and online access
$199.00 per year
only $3.90 per issue
Buy this article
- Purchase on SpringerLink
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
References
Martell, A. E., and Calvin, M., “Chemistry of the Metal Chelate Compounds” (Prentice-Hall, Inc., New York, 1952).
Herzberg, G., “Atomic Spectra and Atomic Structure” (Dover Pub., New York, 1944).
Bennett, J. E., and Ingram, D. J. E., Faraday Society Discussion, “Microwave and Radio Frequency Spectroscopy”, April 1955, (in the press).
Bleaney, B., and Ingram, D. J. E., Proc. Phys. Soc. A, 65, 953 (1952).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
BENNETT, J., INGRAM, D., GEORGE, P. et al. Paramagnetic Resonance Absorption of Ferrihæmoglobin and Ferrimyoglobin Derivatives. Nature 176, 394 (1955). https://doi.org/10.1038/176394a0
Issue date:
DOI: https://doi.org/10.1038/176394a0
