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

Funk, A.M. and Finney, K.-L.N.A. and Harvey, P. and Kenwright, A.M. and Neil, E.R. and Rogers, N.J. and Senanayake, P.K. and Parker, D. (2014) 'Critical analysis of the limitations of Bleaney's theory of magnetic anisotropy in paramagnetic lanthanide coordination complexes.', Chemical science., 6 (3). pp. 1655-1662.

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.

Item Type:Article
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Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1039/C4SC03429E
Publisher statement:This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Date accepted:17 December 2014
Date deposited:13 January 2015
Date of first online publication:17 December 2014
Date first made open access:No date available

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