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Critical analysis of the limitations of Bleaney's theory of magnetic anisotropy in paramagnetic lanthanide coordination complexes

Funk, A.M.; Finney, K.-L.N.A.; Harvey, P.; Kenwright, A.M.; Neil, E.R.; Rogers, N.J.; Senanayake, P.K.; Parker, D.

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Authors

A.M. Funk

K.-L.N.A. Finney

P. Harvey

A.M. Kenwright

E.R. Neil

N.J. Rogers

P.K. Senanayake



Abstract

The origins of the breakdown of Bleaney's theory of magnetic anisotropy are described, based on an analysis of eleven different complexes of the second half of the 4f elements that form isostructural series. An examination of the chemical shift and relaxation rate behaviour of resonances located at least four bonds away from the paramagnetic centre was undertaken, and correlated to theoretical predictions. The key limitations relate to comparability of ligand field splitting with spin–orbit coupling, variation in the position of the principal magnetic axis between Ln complexes and the importance of multipolar terms in describing lanthanide ligand field interactions.

Citation

Funk, A., Finney, K., Harvey, P., Kenwright, A., Neil, E., Rogers, N., …Parker, D. (2014). Critical analysis of the limitations of Bleaney's theory of magnetic anisotropy in paramagnetic lanthanide coordination complexes. Chemical Science, 6(3), 1655-1662. https://doi.org/10.1039/c4sc03429e

Journal Article Type Article
Acceptance Date Dec 17, 2014
Online Publication Date Dec 17, 2014
Publication Date Mar 1, 2014
Deposit Date Jan 12, 2015
Publicly Available Date Jan 13, 2015
Journal Chemical Science
Print ISSN 2041-6520
Electronic ISSN 2041-6539
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 6
Issue 3
Pages 1655-1662
DOI https://doi.org/10.1039/c4sc03429e

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