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Consequences of Fluorine Atom Bridging and Increasing Metal Atom Spin Density for the Low Temperature Magnetism of the Series. Na3[FeF6],[NH4]3[FeF6], [Co(NH3)6][FeF6] and [NH4CoFeF6]

Published online by Cambridge University Press:  15 February 2011

W. M. Reiff
Affiliation:
Department of Chemistry, Northeastern University, Boston, MA 02115
M. J. Kweicien
Affiliation:
Department of Chemistry, Northeastern University, Boston, MA 02115
M. A. Subramanian
Affiliation:
E.I. Du Pont, CR&D, Experimental Station, P.O. Box 80328, Wilmington, DE 19880–0328
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Abstract

Aspects of the low temperature magnetism of some distorted cryolite-like compounds of high-spin iron III, namely Na3[FeF6], [NH4]3[FeF6] are presented. The behavior of these systems is compared to iron-57 Mössbauer spectroscopy and ac-susceptibility results for the related [Co(NH3)6][FeF6] and the modified pyrochlore [NH4CoFeF6] obtained via thermolysis of [Co(NH3)6][FeF6] under nitrogen.

Type
Research Article
Copyright
Copyright © Materials Research Society 1997

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References

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