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

Funk, Alexander M.; Finney, Katie-Louise N. A.; Harvey, Peter; Kenwright, Alan M.; Neil, Emily R.; Rogers, Nicola J.; Kanthi Senanayake, P.; Parker, David

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. M., Finney, K.-L. N. A., Harvey, P., Kenwright, A. M., Neil, E. R., Rogers, N. J., Kanthi Senanayake, P., & 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: Dec 17, 2014
• Deposit Date: Oct 23, 2019
• Publicly Available Date: Oct 31, 2019
• 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
• Public URL: https://nottingham-repository.worktribe.com/output/2829439
• Publisher URL: https://pubs.rsc.org/en/content/articlelanding/2015/SC/C4SC03429E#!divAbstract
• Additional Information: : This document is Similarity Check deposited; : Supplementary Information; : Crystal Structure Data; : The Royal Society of Chemistry has an exclusive publication licence for this journal; OPEN ACCESS: This article is freely available. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence (CC BY 3.0); : Single-blind; : Received 7 November 2014; Accepted 17 December 2014; Accepted Manuscript published 17 December 2014; Advance Article published 7 January 2015; Version of Record published 16 February 2015
• Contract Date: Oct 23, 2019